Maximum speed of the bearing

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The rotational speed of a bearing is primarily limited by the temperature rise caused by frictional heating within the bearing; once the speed exceeds a certain limit, the bearing can no longer rotate due to damage such as burning. 　　The maximum speed of a bearing refers to the limit value at which it can rotate continuously without generating frictional heat that could cause burning. 　　Therefore, the limiting speed of a bearing depends on various factors such as the type, size, and precision of the bearing, as well as the lubrication method, the quality and quantity of the lubricant, the material and design of the cage, and the loading conditions. 　　The maximum rotational speeds for various types of bearings when lubricated with grease or oil (oil bath lubrication) are specified in the respective bearing size tables; these values represent those of bearings designed to standard specifications under normal loading conditions (C/P >= 13, Fa/Fr