What are the conventional rolling bearing check

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Bearings before use, use, use tend to be comprehensive routine examination. This will not only ensure the manufacturer of qualified products factory, many buyers can also take

preventive measures greatly strengthened bearing secur ity coefficient. buy bearing
The check is not a waste of time, to defend the safe operation of your bearings! Seiko Trading Co., Ltd.,

Tianjin Han Huang concluded a multi-experience the routine examination of the Rolling list:
Size benchmark requirement
Measurement Comparative Measurement bearing dimensional tolerances require the amount of blocks or standard parts as a comparative measurement of the size of the base, where the

amount of the block must meet the standard JB/T1078 "provisions of the gauge block, standard parts must comply with the manufacturer competent authorities requirements.
2 measurement region in a predetermined
Provisions of the measuring instruments
Used when the measuring instrument must be calibrated, and having to adapt the precision of the measured bearing and enlargement ratio.
4 allow the measurement error
Can, in pri nciple, allow the measurement error in the tolerance of 10% or less.
5. Measuring load requirements
6 the probe radius and the pressure of the measurement table
In order to reduce the measurement error must be within a possible range, strive to reduce the pressure of the measurement table, - the measuring force and increase the radius

of curvature of the measuring head.
In the measurement of the inner and outer diameters of the bearing, the measuring force and the radius of curvature of the probe can be used with reference to the selection.
7. Provisions of the measurement reference plane
General Rolling taken when measuring the nonprinting end ferrule datum withstand the end face of the thrust load, angular contact ball bearings and tapered roller bearings, take

as a reference surface
8 when measuring the temperature conditions

9. Measurement at mandrel
The basic taper provisions in measuring bearing Kia, Kea and Sd Project for cylindrical bore bearings used on the principle of taper spindle taper defined as 1/5000-l/10000,

used taper spindle for the the conical holes uranium Order of the to 1/12.roller ball bearing


Measuring the ambient temperature requirement is 20 ℃, including bearings, gauge blocks, standard parts, and the temperature of the measuring instruments must be the same as

above them on the same piece of metal plate can be the fastest way to achieve the necessary temperature balance, otherwise take several hours or even days to achieve this

balance.

In order to get the correct measurement results, foreign manpower measurement mechanization to avoid contact with these objects or oven mitts to operate.


When measuring Kia, Kea and SIA, the Sea project, the need to exert the necessary measuring load, so that t he rolling body and the ferrule is in a normal contact position, in

order to obtain stable measured values.angular ball bearings



For the measurement of the bearing inner or outer diameter, the southern end plane of the domestic provisions leave the ferrule are each a maximum chamfer coordinate

measurements within the region, while the foreign is defined as more or less away from the ferrule ends face each twice chamfered coordinate region measurements.