Tribology of controllable torque-limiter

Abstract

The present paper deals with tribological properties of the torque limiter adopted a hybrid system. For lightweighting, magnesium alloy is used for the main parts of the limiters and permanent magnets are used to control the magnetic field. Friction and wear of the sealing part for MR fluid can be a problem in such a torque limiter. In this study, an aluminum alloy (A5052) and a magnesium alloy (AZ91) were slid against the O-rings in the MR fluid and its wear and friction properties were investigated.