2 Bolt Flange Bearing Back Side to Center Width 0.657 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1/2 in Bore Type Cylindrical Closure Double Sealed Housing Material Cast Iron Housing Type Rhombus Included Bearing A-UC201X-008D1 Lubricant Material NLGI #3 Equivalent Maximum Speed 7 800 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Number of Mount Holes 2 Overall Height 2 13/32 in Overall Length 3 27/32 in