Abstract
To date few experimental studies of EHL film are at speed above 5 m/s, and most optical EHL experiment is based on classical ball-on-disc contact. This paper presents a newly developed optical EHL test rig in ball-on-ring contact for the investigation of film thickness at high speed. Tests are conducted under tractive rolling condition up to 52 m/s. Results show that, film thickness follows classical prediction at low speed, deviates but still increases at medium speed and finally decreases at very high speed; severe sliding occurs at high speed; the film thickness profile along motion direction changes from flat to wedge.
Original language | English |
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Pages (from-to) | 216-223 |
Number of pages | 8 |
Journal | Tribology International |
Volume | 113 |
DOIs | |
Publication status | Published - Sept 2017 |
Keywords
- Ball-on-ring
- EHL film thickness
- High speeds
- Optical interference