Flange Bearing Bearing Insert Material Alloy Steel Bearing Insert Type Tapered Roller Bore Diameter 3 1/4 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 7 in Number of Mount Holes 4 Overall Height 9.25 in Overall Length 9.25 in Overall Width 5 in Rolling Element Rows 2