Friction adjusting idler is of very strong ability of preventing conveyor belt damage and sideslip. It is based on the frict Name:self-aligning friction idler Material:Carbon steel/stainless steel Features: (1) Tube:carbon steel tube S235JR/ seamless steel tube; (2)Shaft: 45# STEEL equal to C45, or as request; (3)Bearing:Single&Double Row Deep Groove Ball Bearing 2RZ&2Z with C3 clearance; (4) ...