LR208NPP Track Roller 1 Row Bearing 40x85x18 Sealed Track BearingsLR208NPP Single Row Ball Bearing 40mm x 85mm x 18mm One Bearing LR208NPP Track Roller Single Row Bearing. This is a sealed bearing with inner diameter of 40mm, outer diameter 85mm, and width 18mm. Item: Bearing Type: Track Roller Single Row Bearing Size: 40mm x 85mm x 18mm Bearing Inner Diameter: 40mm Bearing Outer Diameter: 85mm Bearing Width : 18mm Quantity: One Bearing Load rating CW: 22800 N Load rating COW: 13600 N Speed: 5000 RPM