4 Bolt Flange Bearing Back Side to Center Width 0.748 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1 1/4 in Bore Type Cylindrical Closure Double Sealed Housing Material Cast Iron Housing Type Square Included Bearing UC207-104D1 Lubricant Material NLGI #3 Equivalent Maximum Speed 4 200 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Height 3.625 in Number of Mount Holes 4