Pillow Block Bearing Base Height 1.252 in Base Width 3.5 in Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 2 15/16 in Bore Type Cylindrical Center Height 3 31/64 in Closure Open Housing Material Cast Iron Lubricant Material NLGI #3 Equivalent Maximum Speed 1 900 RPM Maximum Temperature 250 Degrees F Minimum Temperature -40 Degrees F Mount Hole Center-to-Center Length 9 in Mount Type Bolt-Through Number of Mount Holes 2 Overall Height 7 in