Pillow Block Bearing Base Height 0.708 in Base Width 2.126 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1 1/2 in Bore Type Cylindrical Center Height 1 59/64 in Closure Open Housing Material Cast Iron Lubricant Material NLGI #3 Equivalent Maximum Speed 3 700 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Length 5 25/64 in Mount Type Bolt-Through Number of Mount Holes 2