Pillow Block Bearing Base Height 0.811 in Base Width 2.374 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1 11/16 in Bore Type Cylindrical Center Height 2 1/4 in Closure Open Housing Material Cast Iron Lubricant Material NLGI #3 Equivalent Maximum Speed 3 050 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Length 6 7/32 in Mount Type Bolt-Through Number of Mount Holes 2