4 Bolt Flange Bearing Back Side to Center Width 0.866 in Bearing Insert Material Stainless Steel Bearing Insert Type Radial Ball Bore Diameter 1 15/16 in Bore Type Cylindrical Closure Double Sealed Housing Material Stainless Steel Housing Type Square Included Bearing SUC210-31FG1 Lubricant Material FDA/USDA-H1 Solid Grease Maximum Speed 2 900 RPM Maximum Temperature 250 Degrees F Minimum Temperature -20 Degrees F Mount Hole Center-to-Center Height 4 7/16 in Number of Mount Holes 4