Spherical Plain Bearing Liner Material No Liner Bore Diameter 1 1/2 in Ball Diameter 2.154 in Outer Ring Width 1.125 in Outside Diameter 2 1/2 in Outer Ring Material Alloy Steel Seal Material Rubber Ball Material Alloy Steel Ball Material Grade 52100 Bore Diameter Tolerance -0.0005/+0.0000 in Closure Double Sealed Finish Protective Coating Inner Ring Width 1.312 in Lubrication Openings Lubrication Hole Maximum Ball Swivel 6 Degrees Outside Diameter Tolerance +0.0000/- 0.0004 in