4 Bolt Flange Bearing, Back Side to Center Width 0.669 in, Bearing Insert Material Stainless Steel, Bearing Insert Type Radial Ball, Bore Diameter 1 in, Bore Type Cylindrical, Closure Double Sealed, Housing Material Polymer, Housing Type Square, Included Bearing SUC205-16FG1, Lubricant Material /USDA-H1 Solid Grease, Maximum Speed 5,100 RPM, Maximum Temperature 250 Degrees F, Minimum Temperature -4 Degrees F, Mount Hole Center-to-Center Height 2 3/4 in, Number of Mount Holes 4