Is there a shortcoming in China's high-speed rail, which requires a large number of imported bearings every year?
Is there a shortcoming in China's high-speed rail, which requires a large number of imported bearings every year?
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The maximum allowable speed of motor bearing
by：Waxing
2020-11-24
Each type of motor bearing has its limit speed.
Motor bearing under the condition of certain load and lubrication, bearing heat and heat balance, not the speed of the failure called maximum allowable speed.
With the maximum allowable speed motor bearing types, cage type, lubrication method, load and cooling conditions and so on.
Using contact type rubber sealing ring (
RRS)
The maximum permissible speed of motor bearing is limited by sealing ring with circumferential speed contact parts, its maximum allowable speed usually used in non-contact sealed bearing the maximum allowable speed of 50%
60%.
If you need special high motor bearing, please contact bearing sales engineer.
In the case of motor bearing by large load, maximum allowable speed need to reduce.
If the motor bearing need to be used more than 70% of the maximum allowable speed, need to choose suitable for high speed way of lubrication.
Horizontal direction of motor bearing is used, and adopt the proper lubrication to reach maximum speed.
If use vertical drop, can only use bearing 80% of the maximum allowable speed.
Above is today the author has given you the bearing little knowledge, to learn more about bearing small knowledge, pay attention to the bearing's official website.
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