Open Access
Table 2
Test conditions.
| Ball and roller material | Martensitic Steel ANSI 52100 | ||
|---|---|---|---|
| Roller diameter | 18 mm | Applied load | 35 kN |
| Roller length | 26 mm | Maximum Hertz contact stress | 5.3 GPa |
| Roller hardness | 62 HRC | Roller rotating speed | 4100 rpm |
| Roller surface roughens Ra | 0.08 µm | Lubricant | Shell Turbo 32, mineral oil |
| Ball diameter | 20 mm | Lubrication method | Circulation, stirring in the oil bath |
| Ball hardness | 58–62 HRC | Oil temperature | 48±1 °C (outer ring) |
| Ball surface roughens Ra | 0.02 µm | Lubricant film thickness | 0.209 µm |
| Lubrication parameter | λ = 3, kappa∼2.5 (EHL full film) | Maximum testing period | 200 h |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.