Pillow Block Bearing Base Height 1.063 in Base Width 2.874 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1 15/16 in Bore Type Cylindrical Center Height 2.5 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 6 23/32 in Mount Type Bolt-Through Number of Mount Holes 2 Overall Height 4.96 in