4 Bolt Flange Bearing Back Side to Center Width 0.63 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1 in Bore Type Cylindrical Closure Double Sealed Housing Material Cast Iron Housing Type Square Included Bearing UC205-100D1 Lubricant Material NLGI #3 Equivalent Maximum Speed 5 900 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Height 2.75 in Number of Mount Holes 4 Overall Height 3.75 in