YR-1-1/8-X Bearing Track Yoke type Cam Roller 5/16x1 1/8x5/8 BearingsYR 1 1 8 X Needle Roller Sealed Bearing 5 16" Bore Diameter One Bearing YR 1 1 8 X Needle Roller Sealed Bearing, Bearing Inner Diameter is 5 16" Inch, Bearing Outer Diameter is 1 1 8" Inch, and Bearing width is 5 8" Inch, it is used for heavier loads and where clevis or shaft mounting is preferred. Item: YR 1 1 8 X Bearing Type: Needle Roller Bearing Closures: Sealed Size: 5 16" x 1 1 8" x 5 8" Inch Size: 0. 313" x 1. 125" x 0. 625" Inch Bearing Inner