Timken RA100RRB Wheel Bearing Collar Price For: Each Item: Insert Ball Bearing Width: 31.0mm Outside Dia.: 52.0mm Inside Dia.: 1" Dynamic Load Capacity (Lb.): 3550 Bore Dia.: 1" Locking Type: Self-Locking Collar Series: RA-RRB Bearing Material: Stainless Steel Country of Origin (subject to change): Multiple