Pillow Block Bearing Base Height 23 mm Base Width 60 mm Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 55 mm Bore Type Cylindrical Center Height 63.5 mm Closure Double Sealed Expansion Type Fixed Housing Material Cast Iron Lubricant Material Grease Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Mount Hole Center-to-Center Length 171 mm Mount Hole Center-to-Center Width 171 mm Mount Type Bolt-Through Number of Mount Holes 2