hematite magnetic separator motor mechanical failure and maintenance

Mining equipment industry continues to develop, Henan Yu made what in such a competitive market to survive until now it? Of course, we have our own conduct fundamental. Henan Yu hair beginning to end, a customer-centric, from the customer s point of view to production and manufacturing equipment, our equipment conscience to speak, even in the mining industry, give birth to a low ebb in the case, we still have customers to vendors talk! Which is is the reason for it, because our equipment reassuring, service reassuring, used after not regret it.

Separator is used in the re-use powdered iron removal mitochondria, etc., magnetic separator is widely used in recycling, timber, mining, ceramic, ch emical, food, and other workshops for particle size less than 3mm magnetic iron ore, pyrrhotite, roasted ore, ilmenite and other materials wet magnetic separation, but also for coal, non-metallic minerals, building materials and other materials, iron work, is the industry s most widely used, high versatility One aircraft. Below you about magnetic separation equipment manufacturers to motor common mechanical faults and maintenance description:
magnetic drum separator
1 stator and rotor core troubleshooting: stator and rotor are made of silicon insulated from each other quartet built, is part of the magnetic circuit of the motor. Stator and rotor core damage and deformation mainly caused by the following aspects.

① excessive bearing wear or defective assembly, resulting in the stator and rotor rubs, surface damage to the core, silicon steel and cause short-circuit, the motor iron loss increa ses, the motor temperature is too high. Then the application filing and other fine deburring tool to remove silicon short, clean up after applying varnish and heated drying.
suspension magnet
② Remove the old winding when the force is too large, so Pirates slot skew and flared. At this point the application needle nose pliers, wooden hammer and other tools to be trimmed so bad tooth reset, and there is a gap in the bad reset of silicon added between green shell paper, plastic, wood and rigid insulation material.

③ due to damp and other causes of iron surface rust. Time required sanding clean, clean up after applying varnish.

④ heat generated around the burning core group of grounding or bad teeth. Available tools such as a chisel or scraper clean and remove sediments will melt, coated with insulating paint drying.

⑤ bonding between the core and bas e loose, original screws can be tightened. If the screws fail, the base unit can be re-positioning holes drilled and tapped, tighten the screws.

2 Bearing Troubleshooting: shaft through the bearing support rotation is the heaviest part of the load, and is easy to wear parts.

① Troubleshooting

Operation check: Rolling starvation, you will hear "Gulugulu" sound; If you hear no continuous "Terrier Terrier" sound, may be bearing rims rupture. Bearing mixed with sand and other debris or bearing parts with mild wear, it will produce a slight murmur.

INSPECTION AFTER REMOVAL: first look at the rolling element bearings, inner and outer rims for damage, corrosion, scars, etc., and then hand pinch the bearing inner ring, and to settle bearing in one hand by pushing just outside the circle, if the bearing good and outer rims should be smooth rotation, vibration and rotation without obvious catching phenomenon, stalling t he outer rim without setbacks. Otherwise Description bearings are no longer usable. Left hand jammed outer ring, right hand and hold inside rims, forced to push in all directions, and if felt very loose when pushed, is badly worn.

② troubleshooting: Bearing outer surface rust can erase 00 sandpaper, and then into gasoline for cleaning; or bearing cracks, excessive bearing inner and outer rings chipped or worn, replace with new bearings. Replaced with new bearings, to use the same model with the original bearings.

3 shaft TroubleshootingMagnetic Head Pulley

① shaft bending: bending if not, can be polished journal, slip ring method of repair; when bending over 0.2mm, the shaft can be put in the press, the pressure in the film bends correction after correction shaft polished surface with a lathe cutting; if bent too big, you need to put another one axis.

② journal wear: journal wear little, it would be a layer of chrome plating on the journal and then grinding to the desired size; wear more, can be carried in the journal surfacing, cutting lathe and then polished; If the journal wear is too large, the journal also turning 2-3mm, then car a sleeve, hot sleeve in the journal, and then turning to the desired size

The past two years, followed by a new high gradient magnetic separator and new efficient anti-flotation reagent successful development of high intensity magnetic separation - reverse flotation - roasting joint brown iron ore sorting technology has made significant progress, that is, first through the magnetic - obtain a low impurity content reverse flotation of iron ore, and then through the ordinary roasting or mixed with magnetite concentrate produced pellets of iron can significantly improve product quality, but still high-quality iron materials. We Jiangxi pit iron ore limonite, etc. Experimental resu lts show that the anti-flotation concentrate iron grade can be reached 5% 57, SiO2 content is reduced to about 5%, after the iron grade calcined product may reach 64% or more, and roasting, magnetic separation, reverse flotation combined process analogy, production costs dropped substantially, so that the type of economic exploitation of the value of iron ore, and in 2005 will be put into production. Industrial production over the past practice has a strong magnetic beneficiation process, strong magnetic separation - positive flotation, but because of the nature by limonite (extremely muddy), high intensity magnetic separation device (right-20μm iron minerals recovery than Poor) and flotation reagent constraints, sorting index is poor, while reducing magnetic roasting - weak magnetic beneficiation process cost is high, so the class of basic iron ore has not been effectively utilized. Limonite ore magnetic separator magnetic roasting processes are restored - the weak magne tic separation, high intensity magnetic separation, re-election, flotation and joint processes. In order to improve the recovery of fine-grained iron minerals, was conducted using lignite as a reductant and fuel kiln roasting technique semi-industrial tests, flocculation - intensity magnetic separation technology industries, such as testing, have achieved good results.

Widespread market separator device is Yu Fa Machinery gravity respected products, gathered in the existing high-tech products in the market, you want to become an overnight success is very difficult thing, but only determined to create will win a sunny day . Yu Fa Machinery separator is designed for mining beneficiation industry design of a mineral processing equipment, it is mainly used in addition to iron work or mix different types of mineral resources among the beneficiation process systematization, which has been incorporated into a mine irreplaceable Among the mineral processing industry, beca use it has a foundation conquering beneficiation conditions:

Magnetic system used in all high-performance NdFeB rare earth materials and making high-quality ferrite materials, a cleverly open magnetic circuit design, drum table of maximum magnetic induction constituency more than 0.8T, the magnetic field strength is a conventional machine 3 -5 times, sub-district of electromagnetic field strength can reach the level of intensity magnetic separator. Durable stainless steel cylinder by sorting refined.

Mineral separator equipment sorting through vibrating feeder evenly into the separation tube to the upper part of the rotation of the cylinder barrel stripped non-magnetic materials, magnetic materials subject to strong magnetic force attracted to the cylinder, with the sub-ore board easily and accurately the magnetic, non-magnetic material separation. Beneficiation process professional, rational, efficient, high-quality performance.

High quality magnetic separator device is a highly coordinated operation equipment, which appeared in a number of specialized processing production line process among the available refractory materials, chemical materials, grain and oil machinery, abrasives, ceramics, metallurgy, cement , powder metallurgy, rubber, minerals and other materials in addition to (elect) iron work to use, and with Raymond mill, grinder, supporting the use of a ball mill, and magnetic separation - flotation, magnetic separation - re-election is nearly Some years, the mainstream dressing mix process, the effect has been made mining beneficiation industry recognition, and many have been successfully applied experience.

Because limonite rich water of crystallization, so using physical beneficiation of iron ore grade is difficult to reach 60%, but after roasting larger and substantial progress due to burning of iron concentrate grade. Moreover, because the crushing grinding limonite easily in the proce ss of clay, it is difficult to obtain a higher metal recoveries.

Brown iron ore pit we were selective flocculation - intensity magnetic separation technology industry test results show that iron metal recovery can be increased by 10 percentage points or more, but because of selective flocculation flocculation process equipment and control of the premise of not pass without energy industry.

the energy saving quartz sand iron separator steady overseas markets

Weak magnetic separation equipment to use more permanent magnets do magnetic source, mainly from the energy departure. The strong magnetic field magnetic separation equipment to use electromagnetic magnetic source, this is because the magnetic field of electromagnetic magnetic source
magnetic name tags
Strength can be designed very high, and generally low field strength of the permanent magnet, the magnetic field strength may not meet the requirement. Quartz sand using a permanent magnet iron separator is required

Adopt new and efficient permanent magnet. With magnetic separator overseas export volume continues to increase, our company separator equipment for the pr oduction of quality and process also pay more attention.

    Quartz sand iron Magnetic Separator in the process of design and development focus on independent innovation, unique and advanced quartz sand iron magnetic separator sets of strong, rotating hosts loaded

Set uses a sealed gear box, transmission smooth. Modern machinery industry, whether domestic or foreign competition is very intense, so we can quickly send separator device

Exhibition is entirely based on the design of efficient technology foundation. Growing our precious water resources, it is because of our lack of water gradually, a lot of ground

Parties are lack of water, even to the point where no water to drink. But most of us do not awareness of water conservation, resulting in a lot of water wastage, this hair

Health is our country do not advocate, thus saving on natural resources is very important. We Yu Fat Industry in the producti on of magnetic separation equipment in addition to quartz sand

Iron magnetic separator can be a good save our water resources.Magnetic Plate

 Industry is the basis for national economic development, mineral processing industry is the cornerstone of magnetic separator is one of the devices now commonly used in mining, magnetic separator is mainly used for sorting magnetic

Minerals such as iron-based, but also for non-magnetic minerals in addition to magnetic job, then those commonly used in the specific separator mineral sorting it?

1, black metals: martite, hematite, limonite, siderite, chromite, ilmenite, manganese recycling;

2, non-ferrous metals: tungsten-containing quartz veins fine disseminated wolframite recovery of polymetallic sulfide ore cassiterite in the separation of pyrrhotite, cassiterite and wolframite sub-

Away, the separation of mine rals such as limonite, scheelite and wolframite, garnet and other minerals separation;

3, rare: the tantalum-niobium ore, iron lithium mica, monazite and other recycled.magnetic lifter

4, non-metallic areas: glass ceramic industrial raw materials quartz, feldspar, kaolin purification, high temperature refractory sillimanite, andalusite, kyanite iron removal and addition of

Amphibole, mica, tourmaline, garnet and other harmful impurities, etc.;

 5, other aspects: the weak magnetic tailings recovery; Alumina Plant hematite iron mud election; steel mills, power plants, waste water treatment; cleaning catalysts contaminated by chemical raw

And other materials.

    Quartz sand iron magnetic separator is the use of mineral beneficiation machinery for sorting, quartz sand iron magnetic separator is the most important part of the magneti c system, quartz sand, iron separator

Magnetic system into an open magnetic system magnetic system and graduation open magnetic system that is disposed adjacent to the magnetic pole, the magnetic field strength is not high, with quartz sand in a weak magnetic field on the magnetic separator iron; closed magnetic

Department arranged opposite poles, this magnetic system generates a strong magnetic field, so strong magnetic iron sand separator with closed magnetic system, the election of weakly magnetic minerals.

Quartz sand iron magnetic separator role is so vast, so magnetic separator manufacturers are also more and more, then we select the separator in time will result in distress, such as

How to choose it? Xiao Bian here is not to say, the choice of quartz sand iron magnetic separator when their first look at the categories of minerals, can only be determined after analysis

To use the kind of magnetic separator, mines a ccording to the needs of users to provide a suitable magnetic separator magnetic system equipment, Henan Yu hair professional magnetic separator manufacturer, a professional

Technical team to help you out.

equipo de procesamiento, la estructura interna de cuarzo mineral magnético aplicación razonable separador

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- China Manufacturer

Thank you for inquiry my , Tel: +86 755 2692 3096, E-mail: sz.magnet@mailcenter.com.cn

Fuerte mineral magnético tamaño de los gránulos de las partículas minerales magnéticos tiene un efecto significativo. Con que disminuye el tamaño de partículas, las partículas de mineral serán más pequeños que la susceptibilidad magnética es que aumenta la fuerza coer citiva. Es decir, los granos minerales más pequeños, más fácilmente magnetizado después de magnetización y desmagnetización, especialmente cuando el tamaño de partícula es menor que 20-30um. En la selección de zonas semi-cuerpo actual vástago, medios de montaje el agua de lavado, el concentrado adsorbido en el tambor de lavado repetido, el propósito de mejorar el grado de concentrado;, el contador de media ranura en tercer lugar, más de selección de exploración cuerpo femenino flujo modificado de manera que la pulpa producida de barrido efecto de vuelta de circunscripción, disminuyendo la velocidad de flujo de la suspensión de manera que los minerales magnéticos tienen más posibilidades de ser reciclado.
iman tierras raras
      Cuarzo magnético princip al función separador mineral es realizar minerales magnéticos, realizadas en materiales no magnéticos, trabajo del hierro, sino también para concentrada antes que el equipo de filtración. Durante la última década, para la clasificación de bajo grado diseminada tamaño de grano fino y composición mineral de complejos minerales débilmente magnéticos, ha desarrollado diversas formas de cuarzo separador magnético de mineral, tales como el anillo, jaula, disco, más aún en la etapa experimental. Medio de cuarzo mineral magnético separador magnético separador se utiliza principalmente para mineral de óxido parcialmente ferromagnético. De acuerdo con las necesidades del usuario, para producir el dispositivo separador magnético correspondiente.
imanes de tierras raras
       Tipo de sistema de cuarzo mineral de sistema magnético separador magnético magnético hay dos tipos, a saber, abrir sistema magnético y el sistema magnético cerrado. Los diferentes tipos tienen diferentes propiedades magnéticas de sistemas magnéticos. Sistema magnético abierto en el mismo lado del polo está dispuesta adyacente a y entre los polos magnéticos medio no magnéticas, una brecha grande de aire, las líneas del campo magnético en el espacio de estado abierto, el llamado sistema magnético abierto; cerrado polos opuestos dispuestos del sistema magnético, espacio de aire muy pequeño entre, líneas cerradas de campo magnético en el pequeño espacio, de modo que el sistema magnético cerrado.

     Cuarzo mineral separador magnético con un sistema magnético abierto. Abra sistem a magnético de los polos magnéticos de superficie plana o curvada comunes dispuestas en dos tipos de polos magnéticos o poste a lo largo de la cual la distancia entre el plano de simetría de la variación de la intensidad de la inducción magnética de líneas de campo magnético fórmula exponencial. Cuarzo mineral de equipo separador magnético de la hematita, limonita, manganeso y otros minerales magnéticos débiles primarias tienen aplicaciones. Separador magnético se compone de dos lados adyacentes del diseño interno del cilindro del tambor no gira con el imán permanente, el imán se compone de varios polos magnéticos NS composición alterna; pared del tambor está diseñado con múltiples anillos, anillo dispuestas por el hierro o imán magnético poli acero inoxidable. Cuando un imán de barra con el cilindro ma gnético giratorio poli al área imán, poli imán se magnetiza, el campo magnético hasta 1T. El dispositivo se utiliza ampliamente en materiales en polvo, hierro y materiales de mediana magnéticos. imanes permanentes

    Mineral de equipo separador magnético de cuarzo se utiliza ampliamente en los sectores de procesamiento, carbón y químicas minerales, el tamaño de partícula clasificación húmeda 6-0 mm minerales magnéticos fuertes, por lo que el material mineral y no magnético se divide en dos tipos de productos de material magnético. Con el fin de mejorar la eficiencia del separador magnético, se ha producido un tamaño de partícula de tanque de aguas abajo de beneficio ≤ 6 mm, depósito de contracorriente ≤ ≤ 0,5 mm medio tanque contracorriente tres ranuras de estilo de la carrocería de 1,5 mm, diferentes, de acuerdo con las necesidades de los usuarios con diferente estructura de ranura.

     Para separador de mineral de cuarzo, la adopción de método de lubricación eficaz que puede reducir el desgaste del dispositivo en sí. En el curso de controles periódicos de todas partes de la lubricación del tornillo y de mantenimiento, sobre todo donde hay un desvío a menudo relleno de mantequilla, aceite. Generalmente, el dispositivo responsable de la máquina que lleva toda la carga, por lo que una buena lubricación de la duración de la vida del cojinete tiene una gran influencia, que afecta directamente a la vida útil del equipo y la velocidad de funcionamiento del tamaño, lo que requiere la inyección de aceite lubricante debe estar limpio limpio y lubricantes tienen un buen sello, cuarzo separador magn ético de mineral de rotación cojinetes, rodamientos de rodillos, los engranajes, cojinetes actividades, plano de deslizamiento y por lo tanto necesitan tener una buena lubricación.

     En la insuficiencia o accidente equipos, es necesario tener en cuenta el separador magnético de mineral de cuarzo de la manera de iniciar la tercera etapa, el fallo del equipo es entrar en el obstáculo principal, un fenómeno cilíndrica no puede girar, el sonido separador sonido anormal magnética; tanque de bastante movimiento, pieles de tambor han cortado marcas. Con ellos como una sola especie o variedad se produce, las medidas específicas adoptadas se detienen y eliminan los desechos inmediatamente, solución de problemas, compruebe siempre si hay engranajes pernos relajación, tomar medidas oportunas para prevenir daños a la máquina. Sólo cuarzo mineral de eq uipo separador magnético de seguridad el estado normal de los indicadores para poder sacar el tambor magnético inicio separador magnético permanente es razonable.

olenoid valve Type

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solenoid control valve - China Manufacturer

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olenoid valve Type
1, the solenoid valve from the principle divided into three categories:
1) Direct acting solenoid valve:
Principle: power, the electromagnetic coil of electromagnetic force to lift the closure of parts from the valve seat, the valve opens; power, the electromagnetic force

disappears, the spring of the closure member against the valve seat, the valve closes.
Features: In a vacuum, negative, zero pressure can work, but the path is generally not more than 25mm.
2) step direct acting solenoid valve :
Principle: It is a direct-acting and pilot-operated combination of theory, no pressure when the inlet and outlet, the power, the electromagnetic force directly to the

pilot valve and the main valve closure member in turn lift the valve to open. When the inlet and outlet to start pressure, the power, electricity

Magnetic pilot valve, the main valve chamber under increased pressure, the upper chamber pressure drops, and thus the use of pressure to the main valve is pushed

upwards; power, the pilot valve with a spring force or medium pressure to promote off pieces, moving down, so that the va lve Close.
Features: zero pressure or vacuum, high pressure can also be * action, but the power is larger, the request must be installed horizontally.
3) Pilot solenoid valve:
Principle: power, the electromagnetic force open the pilot hole, the upper chamber pressure decreased rapidly formed around the closed lower on the high pressure, the

fluid pressure to promote off pieces to move up, the valve opens; energized, the spring force to the pilot hole is closed, the inlet pressure through the bypass

Through holes quickly close the valve chamber formed around the low-down on the high pressure, the fluid pressure to promote off pieces moving down, close the valve.
Features: Fluid pressure range limit is higher, can be any installation (to be customized) but must meet the conditions of fluid pressure.
2, the solenoid valve from the valve on the different structures and materials with the principle of distinction, is divided into si x branches subcategories: direct

acting diaphragm structure, step by step direct-acting diaphragm structure, the pilot diaphragm structure, direct-acting piston structure, step direct-acting piston

structure, the pilot piston structure.
3, the solenoid valve according to functional classification: water solenoid valve, steam solenoid valves, cooling solenoid valve, cryogenic solenoid valve, gas

solenoid valve, fire solenoid valve, the solenoid valve ammonia gas solenoid valve, the liquid solenoid valve, miniature solenoid valves, pulse solenoid valve,

hydraulic solenoid valve

Normally open solenoid valve, oil solenoid valves, DC solenoid valves, high pressure solenoid valve, explosion-proof solenoid valves, etc.  solenoid valve suppliers

Hydraulic rotary joint advantages

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As the hydraulic drive to the electrical transmission and advantages of mechanical transmission, hydraulic

transmission in various industries more widely used. Hydraulic rotary joint
  Advantagehydraulic hose
The incr easingly widespread application. If the hydraulic actuator relative to the media source is fixed,

you can use steel transmission medium to the implementing agency. If the actuator relative to the media

source has a small amount of movement (move, rotate, swing) you can use the high-pressure hose connection.
quick couplings
If the high-speed rotation of the shaft has a hydraulic cylinder, its transmission medium is required to

use the rotary joint. Currently, the rotary joint is not yet standardized, relatively small manufacturers.
Edit this paragraphstainless steel hydraulic fittings

insulating joints

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The overall effect of insulating joints
Buried steel oil, gas, water pipelines often due to corrosion damage, not only reduces life expectancy, also cause serious accidents. Prevent corrosion of buried pipeline is to take effective measure s to cathodic protection technology. In cathodic protection project it is required to be protected pipes and connected to some of the installations, equipment, electrical connection between the branches cut off, to avoid cathodic protection current is lost to the need to protect the connected components. In order to ensure the success of cathodic protection.
Previously used to achieve this across the insulating flange electrical connection. But the construction site installation requirements insulating flange clean, no moisture, here is difficult to achieve. Insulating flange bolts are often unreliable. It has been shown that many insulating flange insulation is only a short-term guarantee. As insulating flange failure, often makes well-designed, well construction cathodic protection system failure, resulting in leakage or leakage, resulting to pay high maintenance costs. In addition, the buried insulating flange often require ancillary structures - flange wells, increa se the surface area and additional fees.
New pipeline insulation equipment - the advent of the overall insulation joints, then to overcome these problems. It uses a maintenance-free, non-removable overall structure, can be directly buried, no outbuildings, extremely easy to use and with high reliability.brass hose fittings
This type of insulation joints can meet the overall cathodic protection requirements, but also to avoid the insulating flange defects, as replacement products, foreign countries have been widely adopted. China has promulgated SY/T0086-2003 standards also recommend the use of the new product.
ZJ3 series featureshydraulics fittings
ZJ3 overall type insulation joint company through several generations of unremitting efforts to develop scientific and technological personnel, has formed a series of products. In product desig n, material properties, tooling and process improvement and other aspects unique, with full independent intellectual property rights. And product quality can be comparable to similar foreign products. By the state five ministries listed as national key new products.
ZJ3 series insulating joint has the following characteristics:
1. Factory assembled, the overall structure of prefabricated
2. The factory strictly mechanical, electrical inspectionhose crimping machine
3. Suitable for direct buried
4. Without any maintenance
5. According to a variety of specifications to meet the high, medium and low pressure oil, water and gas industry requirements for pipe network
ZJ3 overall type insulation joints main technical indicators:

Working pressure: 1.6 ~ 42Mpa (420 Kg)
Operating temperature :: -20 ~ 320 ℃ (220 hot line has been obtained on application)
Dielectric Strength :: ≥ 5KV, 50Hz
Insulation resistance: 2500V measurement ≥ 10MΩ
Nominal diameter: DN15 ~ DN2500 (1.6 meters in diameter, has large diameter insulated joint application examples)

Comparison of sliding bearings and rolling bearings

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In the work of bearing rolling friction. Rolling easy maintenance, reliable, good starting performance at moderate speeds higher carrying capacity. Compared with the sliding bearing, radial bearing a larger size, poor damping capacity, high speed, low life sound bigge r. Rolling in the radial bearings (mainly radial force) usually consists of inner and outer rings, rolling and rolling element cage four parts. Inner sleeve in the journal together with the shaft rotates, the outer ring mounted in the bearing bore. In the inner and the outer periphery of the inner periphery of the outer ring are formed with raceway. When the relative rotation of the inner and outer rings, the inner and outer rings of the rolling element raceway, are separated by the cage, to avoid friction. Thrust bearings are divided into a tight circle and live ring in two parts. Tight circle and sleeve tight, live ring bearing in the bearing housing. Rings and rolling elements commonly used high strength, wear resistance, good bearing steel, surface hardness after quenching should reach HRC60 ~ 65. Cage mostly made of mild steel stamping, copper alloys can also be used bakelite cloth or plastic manufacturing.slewing b earing suppliers

Many different types of rolling bearings.
       1, according to the direction of load can be divided into radial bearings (radial force and small axial force), thrust bearing (only bear axial force) and radial thrust bearing (can withstand the radial and axial force).
       2, according to the shape of the rolling elements can be divided into ball bearings, roller bearings and needle roller bearings.
       3, according to the working conditions can be divided into plain bearings, high-speed bearings, high temperature bearings, bearing temperature, vacuum bearings, magnetic bearings, corrosion-resistant bearings, precision miniature bearings and oversize bearings. The various types of bearings into China B, C, D, E, G 5 个 accuracy level, B is the highest accuracy level, G is the general level of accuracy, the most common.

Rol ling is the standard, by special bearing factory mass production. Design choices are often factors to be considered life, load, precision, clearance (radial and axial), the limit speed, friction torque, aligning performance, preload and rigidity, vibration and noise.

With the sliding bearing, bearing the advantages
       1, under normal conditions, the efficiency and hydrodynamic bearings lubricated bearings pretty, but more mixed lubricated bearings should be higher;
       2, the radial clearance is relatively small, radial angular contact bearings can be used preload preload to eliminate backlash, high running accuracy;
       3, for the same size shaft, bearing a width smaller than the sliding bearings, make the machine compact in the axial direction;
       4, most of the rolling bearing can be subject to both radial and axial loads, so bearing composite structure is simple;
       5, less lubricant consumption, easy to seal, easy to maintain;thin wall bearings
       6, no useful for non-ferrous metals;
       7, the high degree of standardization, mass production and low cost.

With the sliding bearing, bearing disadvantages:
       1, less able to withstand impact loads;
       2, high-speed heavy load bearing lower life;
       3, vibration and noisy;
       4, the radial dimension than the sliding bearings.

Rolling bearing material

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Rolling bearing rings and rolling elements, side repeatedly exposed to high contact pressure side accompanied by sliding rolling contact. Holder, side rings and

Rolling on both sides of the body, or a party sliding contact side of the tension and compression force. Accordingly, the bearing rings, rolling elements and cage material, performance
, The main requirements are as follows.

    Rings, rolling material required performance: rolling fatigue strength, high hardness, high wear resistance;slim bearings

The required performance of the cage material: good dimensional stability and mechanical strength; also need good workability. According to different purposes, as well as its impact resistance
Resistance, heat resistance, good corrosion resistance.

    Rings and rolling material: rings and rolling commonly used carbon chromium bearing steel.

    Further impact-resistant case, used as a bearing material chrome steel, chrome molybdenum steel, nickel-chromium-molybdenum steel, carburizing quenching the steel from the surface to the appropriate
The depth of a hardened layer. With appropriate hardeni ng depth, fine tissue, an appropriate hardness of the surface and core hardness of the carburizing bearing, than the axis of the bearing steel
Order of the chemical composition having excellent impact resistance, the carburizing bearing steel.

The embodiment of the vacuum degassing treatment, Therefore, the high degree of purity of the material used, the oxygen content of less good quality. Further appropriate heat treatment, so that the roller bearing
The amount of dynamic fatigue life improved significantly.
 
   The above-mentioned steels, in accordance with the special use, but also the use of high-speed steel having excellent heat resistance, good corrosion resistance of stainless steel.

The cage material: punched retainer material, the use of low carbon steel. According to different purposes, brass, stainless steel plate. Cut cage material,thin bearings
The high-strength brass, carbon steel, in addition also the use of synthetic resin.

About rolling bearing clearance and rolling bearing material

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roller bearing manufacturers - China Manufacturer

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Effective clearance, or clearance work is rolling bearings installed on the host to achieve stable operation state of a certain temperature rise in certain loads, scroll
Bearing in the presence of the actual clearance. Obviously, the effective clearance is smaller than the clearance wo rk. The original rolling bearing clearance is rolling bearing sets installed in the front of the machine,
Which in the free state clearance. In fact, the original clearance measurement is difficult to know. Original clearance often use the inspection and clearance instead.china bearing supplier

  The rolling bearing rings and rolling commonly used carbon chromium bearing steel. The most of the bearings, the use of JIS SUJ2 steel species. Large bearing SUJ3. SUJ2
Chemical composition, in the world, as imported bearing materials have been normalized.

  Rolling bearing rings and rolling elements, side repeatedly exposed to high contact pressure side accompanied by sliding rolling contact. Holder, side rings and roll
Moving on both sides of the body, or a party sliding contact side of the tension and compression force. Therefore, bearing rings, rolling elements and ca ge materials, performance,ball bearing suppliers
The main requirements on imports bearing rings, the required performance of rolling material: rolling fatigue strength, high hardness, high wear resistance.

Needle bearing surface off the cause of abnormal

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slewing bearing - China Manufacturer

Thank you for inquiry my slewing bearing, Tel: 0379-64331653, E-mail: info@lyvsg.com

http://www.lyvsg.com/key-slewing-bearing-30/

Bearing part of the move surface material like fish scales fall off, a phenomenon known as fatigue spalling. Withstand a certain load, move the bearings during operation,
Even if the static load, but the balls and raceways purposes, but their stress cycle of reciprocat ion, material fatigue will occur to move so that the bearing life is reached. In addition,
Several kinds of bearings of the type defined in the "Life", one of which i.e. the so-called "working life", it means that a needle bearing can be achieved before the damage actual TING
Life by wear and tear, damage is usually not caused by fatigue, but by wear, erosion, damage to the seal causes.bearing suppliers

However, whether in laboratory testing or in actual use, can be significant to see that the appearance in the same work under the premise of the same bearing, very different from the actual life
. The life of the bearing revolutions (or the number of hours of work under a certain speed) Definition: within needle roller bearings in this life, in any of its bearing ring or move
Body on the initial fatigue damage (peeling or defect). Most of the bearings pumping b ad a lot of reasons - beyond the original estimate of load, an effective seal, over
The tight fit as a result of too small bearing clearance.

    Any factor of these factors has a special type of damage and will leave special signs of damage. To view the damage to the bearings, in most of the cases can be
To discover its possible causes, in general, one-third of the needle bearing damage due to fatigue damage, another one-third due to poor lubrication
The other one-third due to contaminants from entering the bearing or install mishandled.

However, these types of damage with Industry. For example, the pulp and paper industry is mostly because of poor lubrication or contamination caused by damage to the bearing and not because
Due to material fatigue.

Large metal noise

  Reason 1: abnormal load, countermeasures: correction with research bearing clearance, adjust the load, fix the housing should er block position.

  Reason 2: Install the adverse responses: axis, the machining accuracy of the housing, improve installation accuracy, installation method.

  Reason 3: Lack of lubricant or unsuitable responses: add lubricant to select the proper lubricant.

  Reason 4: rotating parts in contact, the contact part of the Solution: Modify the labyrinth seal.

Rules noise

  Reason 1: As the foreign body causing rolling surface indentation, corrosion or scars, countermeasures: Replace the bearings, cleaning the parts, to improve the sealing device, use a clean
Lubricant.

  Reason 2: (after carburizing steel) surface deformation Solution: replace the bearings, pay attention to its use.

  Cause 3: The raceway surface stripping, Solution: Replace the needle bearing.

Irregular noise

   Reason 1: The clearance is too large, Countermeasures: R esearch with the bearing clearance, modify the amount of preload.

   Reason 2: foreign invasion, countermeasures: replacement of bearings, cleaning the parts, to improve the sealing device, the use of clean lubricant.

   Reason 3: spherical injury, peel, Solution: Replace the bearings.

Abnormal temperature rise

   Reason 1: too much lubricant measures: reducing lubricant, used in moderation, choose the hard grease.thin section ball bearings

   Reason 2: Lack of lubricant or unsuitable responses: add lubricant to select the proper lubricant.

   Reason 3: abnormal load responses: changes along with research bearing clearance, adjust the pre-load, modify the position of housing shoulder block.

   Reason 4: poor installation, countermeasures: to improve the machining accuracy of shaft and housing, mounting accuracy, the installation method.
 
  Reason 5: creep, seal friction and the mating surface is too large, Solution: replace the needle roller bearings, with research, to modify the shaft and housing, to change the seal form.

The vibration (axis beating)

   Reason 1: (after carburizing steel) surface deformation responses: Note bearing replacement operation.

   Reason 2: Peel Solution: replace the bearings.

   Reason 3: Install adverse responses: modification the shaft housing shoulder block at right angles to the side of the liner straight angle.

   Reason 4: foreign invasion, Solution: replace the bearings, cleaning the parts, to improve the sealing device.

Excessive lubricant leakage, discoloration

  Reason: too much lubricant, foreign invasion, foreign body wear powder, measures: appropriate use of lu bricants, study the change in lubricant research and needle roller shaft
By Order of the replacement, cleaning the enclosure.

Deep groove ball bearing lubrication mechanism of friction and wear analysis

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bearing factory - China Manufacturer

Thank you for inquiry my bearing factory, Tel: 0379-64331653, E-mail: info@lyvsg.com

http://www.lyvsg.com/key-china-bearing-factory-29/

The bearing friction mechanism and the other bearing significantly different friction factors vary depending on the radial load, the wobble frequency, the oscillating frequency and oscillating angle, the temperature of the contact surface and the surface roug hness. General deep groove ball bearing movement within the outer ring relative to sliding friction, a larger friction; while the other bearing is in motion relative sliding friction compared to the cushion layer and the inner or outer ring, the friction coefficient small. Research shows that a significant difference in the skf bearing friction coefficient of the different materials under the same conditions, in the gasket material.bearing suppliers
With the continuous development of the bearing, the wear mechanism and form changing. Ships lubricated bearings in the work process, due to the relative sliding of the inner and outer rings, causing the bearing surface layer material is continuously loss, resulting in the bearings is not working properly. The main wear adhesive wear, abrasive wear and corrosion and wear 3 types. Deep groove ball bearing wear work due to the liner and the relative sliding of th e inner and outer rings, which led to the shedding of the liner, tearing, extrusion and other failure modes, the bearing does not work.
Bearing lubrication can be briefly described as follows:
a. layer of film is formed between the two rolling surfaces or sliding surfaces in contact with each other and spaced from the second surface to reduce friction and wear of the contact surface.
using oil lubrication, especially circulating oil lubrication, oil mist lubrication and injection lubrication, lubricating oil can take away most of the internal friction heat of the deep groove ball bearings, play an effective role in heat dissipation.
lubricated with grease, you can prevent external dust and other foreign matter from entering the bearing and sealing effect.
d. lubricant has a role to prevent metal corrosion.
e extend the fatigue life of the bearing.
As we all know, the appearance of the work always kept the dial gauge against the end face of the deep groove ball bearings or shaft proper position, even with the contemporary the highest manufacturing technology and processing skf bearing parts. Observe the reading changes with the pretension load method. The preload method has its negative aspects, such as imported bearing friction torque increases, increased temperature rise, shortened life expectancy and so on, so take full account of different levels of tiny geometric error, roller bearings and measurement clearance, shaft or bearing housing need in different directions rotation for several weeks, the ball ends deep groove ball bearings with inner ring on the leading edge in order to ensure proper contact.thin section ball bearing
Self-lubricating layer thinning, leading to the SKF bearing wear depth increases. Thus, bearing failure due to its continuous PTFE is extruded during the swing, the lubrication function decline, eventually leadi ng to knit substrate material wear.

About the bearing in the application of the various problems

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angular ball bearing - China Manufacturer

Thank you for inquiry my angular ball bearing, Tel: 0379-64331653, E-mail: info@lyvsg.com

http://www.lyvsg.com/high-speed-precision-angular-contact-ball-bearing/

Transmission machinery bearings are indispensable parts of general use. Wrong choice, poor installation, improper use, maintenance is not timely will affect their life, causing equip ment failure, resulting in significant economic losses.

Bearing normal life called "narrow life." Bearing operation bearing inner and outer raceway and roller rolling surface, due to repeated load, material fatigue pitting.

Paper Machinery loss most bearings: dryer bearings, drive gear bearing, press roll, drive roll and other large roller type bearings.

First, the dryer

Such as: the operating side using 3,113,740 bearings, drive side bearing using 3,113,748. Bearing with the bearing outer ring is designed to transition fit, the inner adapter using shifting sets. In actual use, most bearing temperature is high, some up to 100 ℃ or more, or even burning phenomenon, and forced downtime.contact ball bearing

Second, the bearings used in the process several situations

1, the installation of the bearing preload does not meet the requirements, the inner ring and shaft relative rotation, causing severe wear of the journal; sometimes too large an adapter, the bearing during operation, due to thermal expansion is not enough space, leading to bearing inner ring burst.

2, bearing and bearing outer rings with improper tightening is too large, because the two different materials, different coefficient of expansion, bearing multi-cast iron or cast steel, the bearing, the outer ring of carbon chromium steel, in a certain temperatures, the transition fit into a tight fit when the interference exceeds a certain range, it will cause the outer ring burst; while the gap is too large, the bearing outer ring and bearing relative rotation, causing the bearing housing is worn, causing severe roller vibration, resulting in broken paper or paper cited difficulties.

3, the analysis, the load, high speed devices, such as bearing and shaft insufficient interference (preload not meet the requ irements), then the load bearing inner ring rotates, the inner circumference of the bearing generated between sliding direction of the creep phenomenon, so that the degree of wear increases with the surface, the shaft and the casing is damaged. Meanwhile, the invasion of the powder worn the bearing, causing the bearing to heat and vibration. Due to bearing friction heat generated by the rotation, the shaft and bearing chamber circulated out. Bearing chamber thermal conditions better than the shaft, so that the bearing outer ring than the inner ring, the rolling element low temperature 5-10 ℃. Moreover, since the hollow shaft through the steam dryer, the heat from the shaft to the bearing, and in the production operation, the bearing inner and outer temperature difference is even greater.high speed bearing

Third, bearing installation does not regulate the operation of the common

For bearing installation, many operators use "red cap" (barbecue heated) violations approach is very wrong. Broiled only difficult to control the temperature, the more important it is easy to change the bearing material resulting in "injuries", local heating and the bearing inner ring, the stress concentration easily deformed or even burst, shorten life. Recommended cooking oil or electric heating method installed bearings.

Check the correct method of bearing failure

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slim bearing - China Manufacturer

Thank you for inquiry my slim bearing, Tel: 0379-64331653, E-mail: info@lyvsg.com

http://www.lyvsg.com/slim-bearing/

For just use bearing novice, will often have no experience. They do not know how to operate them bearing potential problems. Today, I put these experiences with you a rough introduction.

(1) observation. Rolling with the naked eye, there should be no external raceway spalling traces and severe wear, and was an arc-shaped groove; all rolling surface should be no spots, cracks and peeling phenomenon; cage should not be loose, no damage, not worn , but a large gap with the rolling elements.ball roller bearing

(2) texture method. Normal bearing inner and outer ring and rolling gap of 0.005 to 0.010 mm. Have used a stage for rolling bearing inner race with your fingers axial shaking, there should be no obvious Kuang moving sound.

(3) Turn France. With one hand holding the bearing inner race, the other hand turning outer race, the bearings should be flexible rotation, and should not feel the radial shaking.china bearing manufacturer

Inspection, the three kinds of empirical methods should combine in order to facilitate the technical state of rolling bearings to make the right judgments. The tapered roller bearing , the rolling element is also observed in the middle of the outer ring, if the forward, shall not more than 1.5 mm.

The choice of bearing material bearing performance will be affected

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angular ball bearing - China Manufacturer

Thank you for inquiry my angular ball bearing, Tel: 0379-64331653, E-mail: info@lyvsg.com

http://www.lyvsg.com/high-speed-precision-angular-contact-ball-bearing/

Bearing material selection affect bearing performance: When the detection of chromium bearing steel and stainless steel as a material advantage, and found them not only with rust eff ect. Chromium bearing steel is the most common material. It is harder than stainless steel, so longer. However, at higher temperatures, its performance is not how.bearing roller bearings
At 120C under a high temperature, it will happen enormous deformation, the load decreases. Sustained high temperatures it can tolerate 150C, 150C or higher but the moment the temperature will reduce bearing life. Heat treatment can make the bearings to withstand high temperature instantaneously 170C.
The most common stainless steel for the bearing 440, which hard and strong enough to load, (20% less than steel, brass), but it can rust and can tolerate high temperature 250C and 300C of the instant continuous high temperature. We often mistakenly thought that all of the stainless steel is not magnetic, 440 stainless steel is magnetic, it is not completely rust, but by salts, acids, alkalis. 316 levels of anti-rust per formance is very good, not magnetic, but relatively soft, low load, since it is not strong, so the accuracy of the bearing 316 is not high, feeling rough.deep grove ball bearing

Bearing axial load carrying capacity limit is how much

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slim bearings - China Manufacturer

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Bearing axial load carrying capacity limits:

1, deep groove ball bearings such as in pure axial load, the axial load should generally not exceed 0,5 C0 values.bearing roller bearings

2, small bearings (diameter of about 12 mm or less) and light series bearings (diameter series 8,9,0 and 1) shall not be greater than 0,25 C0 withstand axial load.

3, the axial load is too large, it will greatly shorten bearing life.bearing manufacturers

4, if the deep groove ball bearing certain radial load, the axial load it can withstand extreme? Usually if deep groove ball bearings can bear radial load, but also bear certain axial load.

Extend the method of open type linear bearing life Note

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bearing factory in china - China Manufacturer

Thank you for inquiry my bearing factory in china, Tel: 0379-64331653, E-mail: info@lyvsg.com

http://www.lyvsg.com/key-china-bearing-factory-29/

Open type linear bearings reasons of quality and external conditions during use due to its carrying capacity, rotational accuracy and wear resistance will change. Open type linear bearing performance is lower than the requirements wa s not working properly, open type linear bearings fault or failure, open type linear bearings h in the event of failure and other unforeseen circumstances, the machine, the machine will stall, loss of function and other anomalies, so find out the cause, and take appropriate measures in the short term.bearing suppliers
First, in the aspect of the installation to be noted that the steps and methods of installation when the installation is correct. Such as cleaning the open type linear bearings and open type linear bearings associated components,
Check the size of the associated components and finishing, install a good open type linear bearings after the necessary checks. These steps should be carried out carefully checked in order to ensure that the open type linear bearing life.
Secondly, the open-type linear bearing running the basic external conditions, for example, monitoring the temperature o f vibration and noise measurement. The detection allows potential problem prevention, open type linear bearing is well protected.
Again, the open type linear bearings at work to correct lubrication, open type linear bearing lubrication divided into grease and oil lubrication. To open type linear bearing function well, to select suitable conditions, the purpose of lubrication. If only consider lubrication, oil lubrication dominant. Grease lubrication can simplify the structure of expertise around the open type linear bearings.
Finally, when open type linear bearing reaches its end-use period should replace it with a new open type linear bearings.thin section ball bearing
 Lubrication of rolling open type linear bearing fatigue life and friction, wear, temperature, vibration have a major impact, there is no normal lubrication, open type linear bearing does not work, the analysis of open ty pe linear bearings causes of damage that about 40% of the open type linear bearing damage and poor lubrication. Open type linear bearing good lubrication is an effective measure to reduce friction and wear of the open type linear bearings. In addition, the open type linear bearing lubrication heat, rust, sealing, impact and effect. To ensure that the lubricant can not be expired, the selection should be correct, harvester open type linear bearing lubrication of oil and grease lubrication two. The large models gearbox oil lubrication select gear oil GL-580W90; greased general lithium grease with molybdenum disulfide grease by twisting CVT lower part of the device must be Mobil XHP222 or better grease.

Double row deep groove ball bearing installation and maintenance of

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bearing corp - China Manufacturer

Thank you for inquiry my bearing corp, Tel: 0379-64331653, E-mail: info@lyvsg.com

http://www.lyvsg.com/key-bearing-corp-18/

Installed double row deep groove ball bearings have specific requirements of the site, the site must be kept clean and dry to prevent iron, sand, dust, moisture from entering the bearing.
Bearing common installation tool hand hammer, rod, sleeve, s pecial plate, Lo mosquito fixture, press, the amount of a vernier caliper, micrometer, dial indicator, etc., but according to different bearing model selection tool.
Choose to use the right tools, you can bearings installed, the installation should pay attention not bruised, the corrosion layer, debris, sand, dust, and earth exist, if any, will result in the installation difficulties, it is necessary to maintain double row deep groove ball bearing assembly surface and associated with the parts of the surface clean.ball roller bearing
In addition to the double row deep groove ball bearing assembly surface and associated with the parts of the surface cleaning, but also pay attention to the journal surface of the housing bore of the bearing housing, the end face of the shoulder, and connecting parts such as bushings, washers, cover There is no corrosion layer? If any, with a fine file out fine emery cloth lighting, and then install it.
Rolling bearings are precision components, its use should also be carefully carried out. No matter how high-performance bearings, if used improperly, you will not get the expected performance. Note the use of double row deep groove ball bearings are as follows:
Bearing in use to give a strong impact, will have a scar and indentation, the cause of the accident. Severe cases, crack, fracture, it must be noted.
2, to maintain double row deep groove ball bearing and the surrounding clean
Even the eyes can not see dust, will adversely affect the bearings. Therefore, to keep the surrounding clean so that dust will not invade bearings.deep grove ball bearing
3, using the appropriate operational tools
Avoid existing tools instead, you must use the right tools.
4, pay attention to corrosion of bearings
Operating double row deep groove ball bearings , the hands sweat will become rusty. Should pay attention to clean hands operation, it is best to try to wear gloves.

Method of adjusting the radial bearing gap

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slim bearing - China Manufacturer

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The method commonly used to adjust the radial bearing gap is as follows:

1, cylindrical and elliptical bearing backlash, repair scratch can be manually scrape or bearing carved face Padded turning adjusted.ball bearing supplier

, Cylin drical and elliptical bearing headspace can be manually scrape or circumstances allows the bearing carved face padded adjusted.

3, multi-oil wedge fixed bearing, in principle, allow the repair scratch and adjust the bearing clearance, clearance inappropriate should be replaced with new tile.slewing bearing

4, multi-oil wedge tilting bearing is not allowed to repair scratch pad, the gap should be replaced due to the tile inappropriate. Adjustable tile thickness by adjusting the amount of watts adjustment block under the back of the tile and stainless steel pad, or thinning the thickness of the adjustment block. Attention to the multi-oil wedge tilting bearing the same group tile thickness error should be less than 0.01mm

The design of the deep groove ball bearings

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slewing bearing - China Manufacturer

Thank you for inquiry my slewing bearing, Tel: 0379-64331653, E-mail: info@lyvsg.com

http://www.lyvsg.com/key-slewing-bearing-30/

Shielded bearings

Shielded bearings, the suffix 2Z, dust cover is made of stainless steel. Dust cover jade inner ring shoulder forming a very narrow gap, and can withstand high temperature and high speed. Shielded bearings are mainly used in the inner ring rotati ng conditions. If the outer ring rotates, the bearing at high speed will cause the grease to leak.slewing ring bearing

With a ring bearing

Bearings with contact seals, suffix 2RS1, seals made of nitrile rubber given by the steel skeleton of the anti-oil and anti-wear. Xie ring of allowable working temperature of -40 to +100 ° C up to +120 ° C in a short time. The seal lip contact seals sealed inner ring shoulder. The outer edge of the sealing ring in the groove of the outer ring, and at this location can provide a good sealing effect.

The sealed bearings run in some extreme conditions, such as high speed or high temperature, may lead to leakage of grease between the inner ring and the ring. If the leak would impact caused by bearing arrangement injurious affection, it certainly needs to step through a special design.contact ball bearing

Type of bearing roller

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contact ball bearing - China Manufacturer

Thank you for inquiry my contact ball bearing, Tel: 0379-64331653, E-mail: info@lyvsg.com

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Cylindrical roller such roller is mainly used for cylindrical roller bearings, roller assembly can also be directly used in machinery. That kind of roller has been standardized in s ize, can be used as a commodities roller for the design and user-selected.roller bearing

(2) long cylindrical roller divided shaft diameter and shaft diameter in two class roller, mainly used for long cylindrical roller bearings, roller assembly can also be directly used in machinery.

3 needle roller such is mainly used for needle roller bearings, the gimbal needle roller bearings and thrust needle roller bearings, needle roller assembly can also be directly used in machinery. That kind of roller has been serialized in size for the design choices. According to the needs of the bearing structure, cone-shaped needle at both ends of the shape of the head, flat head-shaped, round-shaped.

4 tapered roller circular truncated cone, the cone angle is typically 1 ° to 4 ° 20 , there is less than 1 ° or greater than 4 ° 20 , for 2 °. The roller length generally does not exceed twice the diameter of roller big-endian. This type of roller used for tapered roller bearings, roller basically used for large cone angle thrust tapered roller bearings.

5. Spherical roller roller raceway spherical shape. With this roller bearings with self-aligning performance, can withstand great loads. Spherical roller stars asymmetric and symmetric shape Usually asymmetric spherical end face, the two ends of the symmetrical surface of the flat faces. Symmetrical spherical roller better performance, rather than the symmetrical phase-out form. Such roller for self-aligning roller bearings and spherical roller thrust bearings.spherical roller bearing

The spiral roller is a special section steel strip coils made of hollow roller, divided both left and right hand. This roller application is not very extensive, mainly used by the impact load spiral roller bearings.

7 pillars hole roller pillar ho les roller center with through hole, this hole is used to hold pillar, in order to fix the sheet pillars cage. Class roller cylindrical, conical, spherical shape, mainly used for large bearings.