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Contact ratio (gears)
| Глоссарий терминов смазочных материалов |
Measure of the extent to which more than one tooth carries the load; for spur gears, this should be no less than 1:2-1:4, i.e., 20-40% of the time.
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Controlled volume pump/constant volume pump, английский
See positive displacement pump. copper strip test (astm d-130 and d-4048): for specific periods of time at certain temperatures, exposes copper strips to petroleum products to measure the amounts of copper-corrosive substances they contain; the darkness of the polished copper strip determines the extent of corrosion.
Consistency (grease), английский
Describes the hardness of a grease (its resistance to deformation), indicating relative softness or hardness with the application of force. test method astm d-217 measures the extent of penetration of a cone
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