4 Bolt Flange Bearing, Bearing Insert Material Alloy Steel, Bearing Insert Type Radial Ball, Bore Diameter 1 11/16 in, Bore Type Cylindrical, Closure Double Sealed, Housing Material Cast Iron, Housing Type Square, Included Bearing UC209-27, Lubricant Material NLGI #2 Equivalent, Maximum Temperature 250 Degrees F, Minimum Temperature -40 Degrees F, Mount Hole Center-to-Center Height 4 9/64 in, Number of Mount Holes 4, Overall Height 5 13/32 in, Overall Length 5 13/32 in, Overall Width 2 1/16 in