YR-7/8-X Flat Yoke Needle Roller Bearing 1/4" x 7/8" x 1/2YR 7 8 X Needle Roller Sealed Bearing 1 4" Bore Diameter One Bearing YR 7 8 X Needle Roller Sealed Bearing, Bearing Inner Diameter is 1 4" Inch, Bearing Outer Diameter is 7 8" Inch, and Bearing width is 1 2" Inch, it is used for heavier loads and where clevis or shaft mounting is preferred. YR 7 8 X Bearing Needle Roller Bearing Closures: Sealed Size: 1 4" x 7 8" x 1 2" Inch Size: 0. 25" x 0. 875" x 0. 5" Inch Bearing Inner Diameter: 1 4" Inch Bearing