2 Bolt Flange Bearing, Back Side to Center Width 0.671 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 UCW 201-8, Lubricant Material NLGI #2 Equivalent, Maximum Speed 7,300 RPM, Maximum Temperature 220 Degrees F, Minimum Temperature -20 Degrees F, Mount Hole Center-to-Center Height 3 in, Number of Mount Holes 2, Overall Height 2.375 in