Number of Teeth (Chordal Action)Nom. Pitch DiameterNom. Outer Diameter Nom. Hub Width Available Bore Sizes
inmminmminmmRound inSquare inRound mmSquare mm
12 (3.41%)5.81475.851491.538 1.5 40
14 (2.51%)6.71706.801731.538 1.5 40
16 (1.92%)7.71967.741971.538 1.5, 2.5 40, 60
22 (1.02%)10.526710.592691.538 2.5