Spherical Plain Bearing Liner Material No Liner Bore Diameter 1/4 in Ball Diameter 0.406 in Outer Ring Width 0.218 in Outside Diameter 5/8 in Outer Ring Material Alloy Steel Ball Material Alloy Steel Ball Material Grade 52100 Bore Diameter Tolerance -0.0005/+0.0015 in Closure Open Finish Chrome Plated Flat Diameter 0.293 in Inner Ring Width 0.281 in Lubrication Openings Lubrication Hole Maximum Ball Swivel 11 Degrees Outside Diameter Tolerance +0.0000/- 0.0007 in