4 Bolt Flange Bearing Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1 15/16 in Bore Type Cylindrical Closure Double Sealed Housing Material Cast Iron Housing Type Square Included Bearing HC210-31 Lubricant Material NLGI #2 Equivalent Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Height 4.375 in Number of Mount Holes 4 Overall Height 5.625 in Overall Length 5.625 in Overall Width 2 19/32 in