4 Bolt Flange Bearing Bearing Insert Material Alloy Steel Bearing Insert Type Radial Ball Bore Diameter 19 mm Bore Type Cylindrical Closure Double Sealed Housing Material Cast Iron Housing Type Square Included Bearing SB204-12G Lubricant Material NLGI #2 Equivalent Maximum Temperature 120 Degrees C Minimum Temperature -40 Degrees C Mount Hole Center-to-Center Height 63.9 mm Number of Mount Holes 4 Overall Height 85.7 mm Overall Length 85.7 mm Overall Width 33.3 mm