Abstract
The migration and distribution of lubricant oil in a rolling bearing strongly affect the elastohydrodynamic lubrication performance between the balls and rings. However, oil re-lubrication is highly dependent on the bearing design, which is different from the ball-on-disc model. This study directly observed the distribution of the lubricant film in a custom-made model-bearing rig, with an outer ring replaced by a glass ring to allow full optical access. The influence of the cage type and surface properties were presented. The physical origin of the re-lubrication mechanism, including capillary flow and mechanical redistribution, was discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 1035-1045 |
| Number of pages | 11 |
| Journal | Friction |
| Volume | 10 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Jul 2022 |
Keywords
- ball bearings
- cage
- lubrication
- oil distribution