4 Bolt Flange Bearing Back Side to Center Width 0.709 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1 1/8 in Bore Type Cylindrical Closure Double Sealed Housing Material Cast Iron Housing Type Square Included Bearing UC206-102D1 Lubricant Material NLGI #3 Equivalent Maximum Speed 4 900 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Height 3 17/64 in Number of Mount Holes 4