- assembly preconditioning
inspection of proper bearing assembly on a macro level, initial break-in of each unit, running in of the seals, etc.
- rolling friction torque
measurement of friction torque used to determine the dynamic coefficient of friction for a particular bearing type
- dynamic coefficient of friction
determining the dynamic coefficient of friction of a bearing assembly under various controlled conditions
- maximum speed
measurement of maximum continuous speed at which the bearing can run
- axial load capacity
measurement of bearing performance during application of a purely axial load to the outer race
- radial load capacity
measurement of bearing performance during application of a purely radial load to the outer race
- combined load capacity
measurement of bearing performance during simultaneous application of both axial and radial loads to the outer race
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- moment load capacity
measurement of bearing performance during application of a moment load to the outer race relative to the inner race
- lubrication testing
bearing performance measurement using different lubricants around the rolling elements (i.e. grease, oil)
- over-speed test
destructive testing of bearing assembly at speeds exceeding the maximum rated speed
- profile execution
cyclic running through various speed profiles with specific acceleration and deceleration rates, replicating application-specific conditions
- environmental testing
measurement of bearing performance under both temperature extremes, cold testing down to minimum rated temperature, and hot testing up to the maximum rated temperature
- acoustic noise
measurement of the sound power levels during bearing operation under controlled speed, torque, and temperature
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