Representative form of bearing units. To attach it to the axis simply tightening the ball loaded set screw. Bearing Diameter: 1.6 inches (40 mm); Center Height: 1.9 inches (49.2 mm); Total Length: 7.3 inches (184 mm); Total Height: 3.9 inches (98 mm); Mounting Pitch: 5.4 inches (137 mm); Mounting Screw: M14; Weight: 3.9 lbs (1.9 kg); Bearing Box: Cast Iron Appliances and general machinery etc.