| 21. | Most motors have sealed bearings, so that lubrication is not required.
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| 22. | Then Ethyl bought the lubrication additive divisions of both Texaco and Amoco.
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| 23. | Does this type of door require lubrication or maintenance of any kind?
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| 24. | In terms of lubrication, you can always apply a topical ointment.
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| 25. | American has one of the lowest lubrication intervals of only 940 hours.
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| 26. | The lead provides lubrication; the copper provides the load bearing support.
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| 27. | Oils for hypoid gear lubrication will contain high content of EP additives.
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| 28. | Inadequate lubrication led to premature turbo failure and some engines caught fire.
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| 29. | The speed is ultimately limited by material strength and lubrication.
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| 30. | The coefficient of friction is lower than with boundary-layer lubrication.
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