RotoPrecision Miniature and Instrument Bearings

Limiting Speeds

Limiting speeds for a bearing are generally expressed as a rotation-per-minute (rpm) value. They indicate the point at which the temperature generated internally within a mounted bearing reaches the maximum limit for the bearing components (including the lubricant). Assuming standard characteristics such as sufficient lubrication and perfect assembly conditions, general limiting speed values are available for all RotoPrecision miniature and instrument bearings offered. Achieving more specific values is difficult since they are highly dependent upon the specific conditions of an individual application. Factors including bearing diameter, ball size, cage type, lubricant type (and quantity), operating temperature and the amount of bearing play can all have significant impact on limiting speed values.

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