Limit transmissible torque in the traction drive of a concave and convex roller pair

This paper presents a study on the limit transmissible torque in the traction drive of a concave–convex roller pair. The transmitted torque, the specific sliding, the roller surface temperature and the oil film formation under different contact pressures and roller speeds were simultaneously measured by carrying out a concave–convex roller test. The effect of the lubricant on the limit transmissible torque of the concave–convex roller pair was investigated. Furthermore, the experimental results were compared with theoretical ones based on the thermal elastohydrodynamic lubrication theory, which takes account of the effects of viscous heating and Eyring viscosity. Close agreement between the theoretical and experimental results was obtained.