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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 -20ˌC (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the original dynamometer scale limited the torque capacity to approximately 30 000 g·cm; the original dynamometer scale is obsolete, however. The suggested replacement scale has not been evaluated; it could extend the limit to approximately 75 000 g·cm.
1.2 The values stated in SI units are to be regarded as the standard in this test method, except for torque values which are given in cgs-metric units, which are universally used in grease specifications. Other units are provided for information only.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard and warning statements, see 6.1.1, 7.2, 7.4, 8.7, and 8.11.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ANSI/ABMA StandardABMA 20:2011
D4693 Test Method for Low-Temperature Torque of Grease-Lubricated Wheel Bearings
ICS Number Code 75.100 (Lubricants, industrial oils and related products)
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ASTM D1478-02, Standard Test Method for Low-Temperature Torque of Ball Bearing Grease, ASTM International, West Conshohocken, PA, 2002, www.astm.orgBack to Top