Pillow Block Bearing Base Height 1.5 in Base Width 2.63 in Bearing Insert Material Alloy Steel Bearing Insert Type Tapered Roller Bore Diameter 2 3/16 in Bore Type Cylindrical Center Height 2.5 in Expansion Type Expansion Housing Material Cast Iron Included Bearing Timken Type E Tapered Roller Lubricant Material Lithium Complex Grease Maximum Speed 2 300 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Length 7 3/8 in