YR-2-1/2-X Flat Yoke Needle Roller Bearing 3/4" x 2-1/2" x 1-1/2"YR 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. YR 2 1 2 X Bearing 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 1 2" Inch