Hybrid stepper motor 57BHH48-16-21B

two-phase stepperNEMA 23precision

Product overview
The 57BHH48-16-21B is a 57mm (NEMA 23) 2-phase hybrid stepper motor delivering 0.883 N·m (9 kg·cm) of holding torque in a 48 mm body. With a 1.6 A/phase rated current, it is suitable for precision motion control applications requiring compact size and consistent holding torque. Recommended driver: CW542.

Key highlights

• 2-Phase, 1.8° step angle — 9 kg·cm (0.883 N·m) holding torque
• 1.6 A/Phase rated current
• 48 mm body length, 6.35 mm shaft diameter

Product datasheet
Datasheet reference: 57BHH48-16-21B

Full specifications
Step Angle — 1.8° ± 5%
Holding Torque — 0.883 N·m (9 kg·cm)
Rated Current — 1.6 A/Phase
No. of Phases — 2
No. of Leads — 4
Shaft Diameter — 6.35 mm
Frame Size — 57 mm (NEMA 23)
Body Length — 48 mm
Weight — 0.65 kg
Recommended Driver — CW542

Features / technical specifications

• Model: 57BHH48-16-21B
• Frame size: 57 mm (NEMA 23)
• Body length: 48 mm
• Phase: 2
• Step angle: 1.8° ± 5%
• Holding torque: 0.883 N·m (9 kg·cm)
• Rated current: 1.6 A/Phase
• No. of leads: 4
• Shaft diameter: 6.35 mm
• Weight: 0.65 kg
• Recommended driver: CW542