YR-2-1/2-X Bearing Track Yoke type Cam Roller 3/4"x2 1/2"x1 1/2" inchYR 2 1 2 X Needle Roller Sealed Bearing 3 4" Bore Diameter One Bearing YR 2 1 2 X Needle Roller Sealed Bearing, Bearing Inner Diameter is 3 4" Inch, Bearing Outer Diameter is 2 1 4" Inch, and width is 1 1 2" Inch, it is used for heavier loads and where clevis or shaft mounting is preferred. Item: YR 2 1 2 X Bearing Type: Needle Roller Bearing Closures: Sealed Size: 3 4" x 2 1 2" x 1 1 2" Inch Bearing Inner Diameter: 3 4" Inch Bearing Outer Diameter: 2