... NSK, SKF, stainless steel Roller for conveyor plastic conveyor roller , belt conveyor roller , steel conveyor roller , stainless steel conveyor roller , aluminium alloy conveyor roller, PVC conveyor rolller 1. Specification Roller diameter38mm 50mm 60mm 76mm ... ×253)Mortise mounting wayMortise mounting way is used for mine idler normally. The convenient install way, frame punched with corresponding ...