Tapered roller bearings and water pump bearing installation

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angular contact ball bearings - China Manufacturer

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The bearing installation: the installation of the bearing must be in a dry, clean environment under the conditions. The installation should be carefully examined before the mating surfaces of the shaft and housing, processing quality of the convex surface of the shoulder of the end face of the trench and connected. Mating connector surface must be carefully cleaned and deburred, casting raw surface Ex molding sand. Bearing installation should be preceded with gasoline or kerosene clean and dry before use, and to ensure good lubrication, bearings are generally lubricated with grease, oil lubrication can be used also. Greased, should be used without the superior performance of impurities, anti-oxidation, anti-rust, extreme pressure grease. Grease filling is 30% -60% of the bearings and bearing capacity of the container, not too much. With sealing structure double row tapered roller bearings and pump shaft bearings filled good grease, the user can be used directly, not cleaning. Bearing installation, you must apply equal pressure on the circumference of the ring face ferrule pressed into, shall not be used The paramount tool directly percussi on bearing face, so as not to damage the bearing. At room temperature in the case of the small amount of interference, with a sleeve onto the end face of the bearing rings and head banging sleeve, through the sleeve will be pressed into the ring balanced. Bulk installation, to be used in the hydraulic machine. Press-fitting, should ensure that the shoulder end face of the outer ring end surface of the housing, inner ring end face and pressed by the end face of the shaft shoulder, and allowed gap. Oil bath can be used when a large amount of interference, heating or induction heating bearings way to install heating temperature range of 80 ℃ -100 ℃, the maximum can not exceed 120 ° C. The APPLIED nut or other suitable method of fastening the bearings, in order to prevent the bearing cooling after shrinkage in the width direction of the ferrule and the shaft shoulder a gap is generated between the. Single row tapered roller bearings installed last clearance adjustment sh ould be carried out. Clearance values should be specifically identified under different conditions of use and the amount of interference with the size. When necessary, should be determined experimentally. Double row tapered roller bearings and pump shaft bearing has been adjusted at the factory, good clearance, do not have to re-adjust installation. Rotation test should be carried out bearing after installation, the first for a rotating shaft or bearing housing, without exception, will be no-load power, low speed, then gradually increase depending on the functioning of the rotation speed and load, and to detect noise, vibration and temperature , abnormal operation should be stopped and checked. Normal operation test before delivery.sealed roller bearing
Disassembly of the bearing: Bearing remove intends to continue to use, you should choose the appropriate removal tool. Removing the interference fit ferrule, only the tension applied to the ferrule, and never allowed to pass through the rolling dismounting force, otherwise the rolling elements and the raceway are bruised. Bearing use of the environment: selected based on the use of parts and conditions of use and environmental conditions Specifications Dimensions, accuracy, with the right bearing is to ensure that the premise of the bearing life and reliability.
Use parts: Tapered roller bearings suitable for bear radial load mainly radial and axial joint load, usually paired with two sets of bearings, the main hub in the front and rear wheels of the car, active bevel gear differential , reducers and other transmission parts.SKF bearing
2, allows speed: installed properly oiled environment, allowing for the bearing speed limit of 0.3-0.5 times. Under normal circumstances, the limit of 0.2 times the speed of most appropriate.
3, allows the t ilt angle: tapered roller bearings generally not allowed axis relative to shell hole tilt, tilt, if any, does not exceed 2 .
4, allowing the temperature: under normal load, and lubricant with a high temperature performance, and adequate lubrication under the conditions, usually bearing allows to work at the ambient temperature of -30 ℃ -150 ℃.double bearing