Pillow Block Bearing Base Height 1.63 in Base Width 2.88 in Bearing Insert Material Alloy Steel Bearing Insert Type Tapered Roller Bore Diameter 2 7/16 in Bore Type Cylindrical Center Height 2.75 in Expansion Type Expansion Housing Material Cast Iron Included Bearing Timken Type E Tapered Roller Lubricant Material Lithium Complex Grease Maximum Speed 2 100 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Length 7 7/8 in