4 Bolt Flange Bearing, Back Side to Center Width 1.343 in, Bearing Insert Material Alloy Steel, Bearing Insert Type Radial Ball, Bore Diameter 2 7/16 in, Bore Type Cylindrical, Closure Double Sealed, Expansion Type Fixed, Housing Material Cast Iron, Housing Type Square, Included Bearing A-UEL212-207D1, Lubricant Material NLGI #3 Equivalent, Maximum Speed 2,500 RPM, Maximum Temperature 250 Degrees F, Minimum Temperature -40 Degrees F, Mount Hole Center-to-Center Height 5.625 in