Pillow Block Bearing Base Height 1.13 in Base Width 2.13 in Bearing Insert Material Alloy Steel Bearing Insert Type Tapered Roller Bore Diameter 1 7/16 in Bore Type Cylindrical Center Height 1.875 in Expansion Type Expansion Housing Material Cast Iron Included Bearing Timken Type E Tapered Roller Lubricant Material Lithium Complex Grease Maximum Speed 3 200 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Length 5.5 in