Inner Ring Bore Diameter 1 1/4 in Compatible Bearing Grainger Part Number 35TX39 779K55 Compatible Bearing Manufacturer Part Number 2610 26101 2616 26161 Outside Diameter 1.5 in Overall Width 1.265 in Ring Material Alloy Steel System of Measurement Inch Bore Diameter Tolerance +0/-0.0005 in Lubrication Openings None Outside Diameter Tolerance +0/-0.0005 in Ring Material Grade Su2