Yoke-Type Cam Follower (Track Roller/Cam Roller) 6300077 - 0.558" OD High TemperatureHigh temperature cam roller with a 0. 558 outer diameter (OD), designed for yoke type cam follower assemblies and track roller applications involving moderate loads and intermittent shock. Yoke not included. The high temperature configuration and high carbon chrome bearing steel material ensures reliable performance in elevated operating environments (up to 275F 135C) while delivering smooth rolling contact along cam profiles or track surfaces. Yoke