The effect of humidity on dry bearing torque
| Autor: | W.J. Plumbridge, J.E. Morgan |
|---|---|
| Rok vydání: | 1987 |
| Předmět: |
Bearing (mechanical)
Materials science Glass fiber Humidity Modulus Surfaces and Interfaces Condensed Matter Physics Surfaces Coatings and Films law.invention Apparent temperature Mechanics of Materials law Materials Chemistry Torque Relative humidity Resilience (materials science) Composite material |
| Zdroj: | Wear. 119:215-223 |
| ISSN: | 0043-1648 |
| DOI: | 10.1016/0043-1648(87)90111-6 |
| Popis: | Indentation-recovery experiments have been performed on a polytetrafluoroethylene-glass fibre composite which is used as liner material in unlubricated bearings. A high humidity (relative humidity, 80%) is associated with greater resilience and also with a reduced relaxation of the bearing liner material. Bearings using this liner material exhibit a greater torque on increasing the humidity or lowering the temperature. These changes are reversible and at constant humidity and temperature stable torque values are attained after about 20 h. It is argued that variations in torque arising from small temperature changes are primarily caused by the associated change in relative humidity rather than by modulus or friction effects. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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