Pillow Block Bearing Base Height 0.563 in Base Width 1.5 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 1/2 in Bore Type Cylindrical Center Height 1 3/16 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 3 5/8 in Mount Type Bolt-Through Number of Mount Holes 2 Overall Height 2.437 in Overall Length 5 in