Pillow Block Bearing Base Height 0.72 in Base Width 1.874 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1 1/4 in Bore Type Cylindrical Center Height 1 51/64 in Closure Open Housing Material Cast Iron Lubricant Material NLGI #3 Equivalent Maximum Speed 4 200 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Length 5 1/8 in Mount Type Bolt-Through Number of Mount Holes 2