Flange Bearing Bearing Insert Material Alloy Steel Bearing Insert Type Tapered Roller Bore Diameter 2 3/4 in Bore Type Cylindrical Closure Double Sealed Expansion Type Fixed Housing Material Cast Iron Housing Type Square Lubricant Material Lithium Complex Grease Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Height 6 in Number of Mount Holes 4 Overall Height 7.75 in Overall Length 7.75 in Overall Width 4.5 in