LR5206NPPU Track Roller 2-Row Bearing 30mm x 72mm x 23.8mm Track BearingLR5206NPPU double Row ball bearing One Bearing LR5206NPPU Track Roller Double Row Bearing, bearing is a Sealed LR5206NPPU Bearing Track Roller Double Row Bearing Size: 30mm x 72mm x 23. 8mm Metric Inner Diameter: 30mm Outer Diameter: 72mm Width : 23. 8mm Quantity: One bearing Load rating Cw: 25,900 N Load rating Cow: 18,700 N Speed: 8,000 RPM Dimensions R d D B 30mm 72mm 23. 8mm