Abstract
The first operating period of machine elements is subject to a running-in phase. Thereby, stresses applied on the contacting surfaces are influenced by the running-in conditions including the lubricant used and can strongly affect the frictional behavior and load-carrying capacity of lubricated contacts after running-in. This study investigates the influences of operating conditions and lubricant additives on the running-in behavior of lubricated line contacts of discs and gears. Results show a strong influence of the lubricant additive on the coefficient of friction during running-in as well as on the surface roughness and surface condition after running-in. The specific boundary friction power, supplemented by considering load carrying capacity limits, has been introduced as a criterion for defining the running-in conditions of gears.
| Original language | English |
|---|---|
| Pages (from-to) | 441-452 |
| Number of pages | 12 |
| Journal | Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology |
| Volume | 231 |
| Issue number | 4 |
| DOIs | |
| State | Published - 1 Apr 2017 |
Keywords
- Running-in
- asperity contact
- back-to-back gear test rig
- gear contact
- mixed lubrication
- tribofilm formation