Two-phase stepper motor 42BHH29-120A-20

hybrid steppertwo-phaseNEMA 17

Product overview
The 42BHH29-120A-20 is a 42mm (NEMA 17) 2-phase hybrid stepper motor providing 0.206 N·m (2.1 kg·cm) holding torque in a compact 29 mm body. Rated at 1.2 A per phase, it is suited to precision motion control applications requiring a short-profile motor. Recommended driver: CW215.

Key highlights

• 2-phase, 1.8° step angle — 0.206 N·m (2.1 kg·cm) holding torque
• Rated current 1.2 A/phase — 42 mm (NEMA 17) frame
• 29 mm body length — 5 mm shaft diameter

Electrical specifications
Step angle: 1.8° ± 5%
Holding torque: 0.206 N·m (2.1 kg·cm)
Rated current: 1.2 A/Phase
Number of phases: 2
Number of leads: 4
Shaft diameter: 5 mm
Frame size: 42 mm (NEMA 17)
Body length: 29 mm
Weight: 0.24 kg
Recommended driver: CW215

Mechanical drawing
Mechanical drawing available for the 42BH Series (42 mm / NEMA 17) showing mounting dimensions and shaft details.

Torque-speed curve
Torque-speed performance curve available for the 42BH Series illustrating torque versus speed characteristics for selection and sizing.

Technical specifications

• Model: 42BHH29-120A-20
• Brand: NEOTON MOTOR
• Frame size: 42 mm (NEMA 17)
• Phases: 2
• Step angle: 1.8° ± 5%
• Holding torque: 0.206 N·m (2.1 kg·cm)
• Rated current: 1.2 A/Phase
• Number of leads: 4
• Shaft diameter: 5 mm
• Body length: 29 mm
• Weight: 0.24 kg
• Recommended driver: CW215