Standard Test Method for Low-Temperature Torque of Ball Bearing Grease
1.1 This test method covers the determination of the extent to which a grease retards the rotation of a slow-speed ball bearing by measuring starting and running torques at low temperatures (below -20°C (0°F)).
1.1.1 Torque measurements are limited by the capacity of the torque-measuring equipment.Note 1-When initially developed, the original dynamometer scale limited the torque capacity to approximately 30,000 gcm; the original dynamometer scale is obsolete, however. The suggested replacement scale has not been evaluated; it could extend the limit to approximately 75,000 gcm.
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