Spherical Plain Bearing Liner Material No Liner Bore Diameter 1/2 in Ball Diameter 0.709 in Outer Ring Width 0.375 in Outside Diameter 7/8 in Outer Ring Material Alloy Steel Ball Material Alloy Steel Ball Material Grade 52100 Bore Diameter Tolerance -0.0003/+0.0000 in Closure Open Finish Protective Coating Inner Ring Width 0.437 in Lubrication Openings Lubrication Hole Maximum Ball Swivel 6 Degrees Outside Diameter Tolerance +0.0000/- 0.0003 in Overall Width 0.437 in