Flange Bearing Bearing Insert Material Alloy Steel Bearing Insert Type Tapered Roller Bore Diameter 2 1/2 in Bore Type Cylindrical Closure Double Sealed Expansion Type Fixed Housing Material Cast Iron Housing Type Circular Lubricant Material Lithium Complex Grease Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Height 6.5 in Number of Mount Holes 4 Overall Height 7.625 in Overall Length 7.625 in Overall Width 4 in