... etc TypeBMM8BMM12.5BMM20BMM32BMM40BMM50 Geometric displacement (cm3/rev.) 8.2 12.9 19.9 31.6 39.8 50.3 Max. speed (rpm)cont ... , parllel key 5×5×16Shaft Ø15.875, parllel key 4.8×4.8×19.05Shaft Ø16.5, involute B17×14, DIN5482 E ... U1E1U G3/8, G1/89/16-18UNF, 3/8-24UNF End port G3/8, G1/8End port 9/16 ... -18UNF, 3/8-24UNF BMM series M+S ...