Factors influencing the bearing's limiting speed include the magnitude of the applied load; the direction of the load; the type and amount of lubricant; and the bearing's manufacturing accuracy, specifically the bearing's tolerance and clearance.
In addition, depending on the type and brand of lubricant, a lubricant may exhibit superior performance but not be suitable for high-speed rotation.
The factors affecting the bearing's limiting speed are related to bearing type, load, accuracy, size, lubrication, clearance, cage, and cooling conditions. However, the most important factor is the permissible operating temperature of the bearing material or the lubricant.