Three-phase motor 57BHP51-100-21

hybrid stepperNEMA 23for robotics

Product Overview
The 57BHP51-100-21 is a 57 mm (NEMA 23) 3-phase hybrid stepper motor delivering 0.441 N·m (4.5 kg·cm) holding torque in a 51 mm body. Rated current is 1 A/phase. The motor is designed for precision motion control applications; recommended driver: CW542.

Key Highlights

• 3-phase, 1.2° step angle — 0.441 N·m (4.5 kg·cm) holding torque
• Rated current 1 A/phase — 57 mm (NEMA 23) frame
• 51 mm body length, 6.35 mm shaft diameter, 6-lead wiring

Quick Specifications

• Phase: 3
• Step Angle: 1.2° ± 5%
• Holding Torque: 0.441 N.m (4.5 kg·cm)
• Rated Current: 1 A/Phase
• Shaft Diameter: 6.35 mm
• No. of Leads: 6

Electrical Specifications
Step Angle: 1.2° ± 5%
Holding Torque: 0.441 N·m (4.5 kg·cm)
Rated Current: 1 A/Phase
No. of Phases: 3
No. of Leads: 6
Shaft Diameter: 6.35 mm
Frame Size: 57 mm (NEMA 23)
Body Length: 51 mm
Weight: 0.6 kg
Recommended Driver: CW542

Mechanical & Performance
Mechanical drawing available for the 57BH series (57 mm NEMA 23) details mounting provisions and external dimensions. Torque‑speed curve for the series is provided to illustrate performance across operating speeds.

Applications & Recommended Driver

• Typical applications: precision positioning, CNC accessories, automation modules, small robotics
• Recommended driver: CW542 (verify matching current and microstep settings)

Model Reference

• Model / Code: 57BHP51-100-21