Gear Oil Classifications

Two of the systems involve the measurement of the oil's VISCOSITY.

  • Viscosity is one of the most important characteristics of a gear oil. It's really a balance in performance.
  • Today's gear lubricants must flow freely when components are cold, yet have enough viscosity to lubricate at operating temperatures. A gear oil must be able to flow upon startup, but still have the correct VISCOSITY during operation.

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