Usually we name a rolling bearing with a Dmn value of more than 1.0X106mm.r/min as high speed ball bearing. " Dm" is the average diameter of the rolling bearing, and " n" is the speed of the inner ring. The centrifugal force has great influence on the life and strength of rolling bearings when they are moving at high speed. Therefore, the weight of high-speed rolling bearings is often reduced to improve the high speed performance, that is to choose the light and super light series or the ceramic ball as the rolling element for high-speed ball bearings. FAG 23084MB bearing online, click this link to learn more.
Attentions:
(1) the use of precision bearings
(2) analysis of bearing internal clearance (Consideration of internal clearance reduction in bearing caused by temperature rise)
(3) analysis of cage material (for high speed rotation, copper alloy or phenolic resin cutting holder is more suitable, also synthetic resin forming cages.
(4)analysis of lubrication (use high speed rotary lubrication, spray lubrication, oil mist lubrication and oil and gas lubrication).
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When bearings are inspected , the appearance of the bearings should first be recorded and the amount and condition of the residual lubricant should be checked .
After the lubricant has been sampled for examination , the bearings should be cleaned . in general , light oil or kerosene may be used as a cleaning solution .
Dismounted bearings should first be given a preliminary cleaning followed by a finishing rinse .Each bath should be provided with a metal net to support the bearings in the oil without touching the sides or bottom of tank . If the bearings are rotated with foreign matter in them during preliminary cleaning , the raceways maybe damaged . The lubricant and other deposits should be removed in the oil bath during the initial rough cleaning with a brush or other means .
After the bearing is relatively clean , it is given the finishing rinse . The finishing rinse should be done carefully with the bearing being rotated while immersed in the rinsing oil . It is necessary to always keep the rinsing oil clean .