6307-2RS1 Ball Bearing Double Sealed ID 35mm OD 80mm Width 21mm6307 2RS1 Sealed Ball Bearing 35mm ID 80mm OD 21mm Width The 6307 2RS1 is a single row deep groove ball bearing, sealed on both sides to keep grease in and contaminants out. Made from high strength chrome steel, it's designed for smooth, long lasting operation in motors, conveyors, gearboxes, and heavy duty machinery. Pack size: 1 bearing Type: Deep groove radial ball bearing Size: 35mm x 80mm x 21mm Inner diameter: 35mm (1. 378") Outer diameter: 80mm