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Oxygenate
| Глоссарий терминов смазочных материалов |
Organic compounds containing oxygen which can be blended into gasoline to improve the octane number or reduce exhaust carbon monoxide (co) content. alcohols and
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Containing, английский
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Worked penetration, английский
- Penetration of a sample of grease immediately after it has been brought to 25°c and worked 60 strokes in the astm grease worker.
- (astm d-217) penetration of a sample of lubricating grease immediately after it has been brought to 77°f and subjected to 60 strokes in a standard grease worker.
Dn factor, английский
- Old reference to define bearing speed. corresponds to bearing bore in millimetres (d) multiplied by the speed in rpm (n). current terminology is ndm.
- Used as a guide to lubricant selection for rolling contact bearings, it is also called a speed factor, the product of the bore of a rolling contact bearing, expressed in mm (d), and the speed in rpm. values up to 300,000 permit use of normal nlgi 2 grease; higher values indicate fluid oil or specially formulated greases, and values in the 1,000,000 range require oil-mist or air-oil lubrication or specially formulated greases.
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