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NewLab 800

NewLab 800 - Low-temperature Torque ASTM D1478 - Low-temperature Torque of Ball Bearing Grease. 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). ASTM D4693 - Low-temperature Torque of Grease Lubricated Wheel Bearings. This test method determines the extent to which a test grease retards the rotation of a specially-manufactured, spring-loaded, automotive-type wheel bearing assembly when subjected to low temperatures. Torque values, calculated from restraining-force determinations, are a measure of the viscous resistance of the grease. This test method was developed with greases giving torques of less than 35 N·m at 40°C.