... , can any transfer, flexible application, the exterior is delicate and durable Self-aligning Ball Bearing 13171.Large size SRB 2 ... Nylon retainer, Steel retainer, Bakelite retainer, etc Features:1. Self-aligning double row spherical roller bearing allows for a high ... rolling mill, mine, petroleum, paper making, cement, sugar pressing, etc. 3. The self-aligning bearing has two types of bores, namely ...