Pillow Block Bearing Base Height 1.299 in Base Width 3.267 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 2 1/2 in Bore Type Cylindrical Center Height 2 63/64 in Closure Open Housing Material Cast Iron Lubricant Material NLGI #3 Equivalent Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Length 7 63/64 in Mount Type Bolt-Through Number of Mount Holes 2 Overall Height 6.063 in