: Specifies the motor length and internal rotor/stator configuration (roughly 34 mm total height).
Since the motor has 4 leads, ignore "bipolar parallel." Wire it in full-bipolar series. bj42d15 26v10 stepper motor datasheet exclusive
After cross-referencing internal OEM documentation and bench tests, here are the verified, exclusive electrical and mechanical specifications for the . : Specifies the motor length and internal rotor/stator