HOUSING WIDTH: 4.125 IN. NOM.; SHAFT MATERIAL: BRONZE; GEAR TYPE: BALL AND SOCKET; GEAR RATIO: 1 TO 1; DISTANCE FROM CENTERLINE OF SHAFT TO COLLAR FACE: 3.812 IN. NOM.; FIRST HUB OUTSIDE DIAMETER: 1.500 IN. NOM.; SECOND HUB OUTSIDE DIAMETER: 1.500 IN. NOM.; FIRST HUB LENGTH: 0.875 IN. NOM.; SECOND HUB LENGTH: 0.875 IN. NOM.