Hybrid stepper motor 57BHM76-060A-21BB

two-phase stepperNEMA 23precision

Product Overview
The 57BHM76-060A-21BB is a 57mm (NEMA 23) 2-phase hybrid stepper motor providing 1.128 N·m (11.5 kg·cm) holding torque in a 76mm body. Rated at 0.6 A/phase and with a 0.9° step angle, it is designed for precision motion control tasks in industrial automation, CNC and robotics. Recommended driver: CW215.

Key Highlights

• 2-phase, 0.9° step angle — 11.5 kg·cm (1.128 N·m) holding torque
• Rated current 0.6 A/phase — 57mm (NEMA 23) frame
• 76mm body length, 6.35 mm shaft diameter, 4-lead configuration

Quick Specifications

• Phases: 2
• Step angle: 0.9° ± 5%
• Holding torque: 1.128 N·m
• Rated current: 0.6 A/Phase
• Shaft diameter: 6.35 mm
• No. of leads: 4
• Body length: 76 mm
• Frame size: 57 mm (NEMA 23)

Electrical Specifications (table)
Step Angle — 0.9° ± 5%
Holding Torque — 1.128 N·m (11.5 kg·cm)
Rated Current — 0.6 A/Phase
No. of Phases — 2
No. of Leads — 4
Shaft Diameter — 6.35 mm
Frame Size — 57 mm (NEMA 23)
Body Length — 76 mm
Weight — 1.1 kg
Recommended Driver — CW215

Technical Illustrations
Mechanical drawing and torque-speed curve for the 57BH series are provided in the product details to support integration and performance verification.

Technical Specifications

• Model: 57BHM76 (example variant: 57BHM76-060A-21BB)
• Manufacturer / Brand: NEOTON MOTOR
• Frame size: 57 mm (NEMA 23)
• Body length: 76 mm
• Number of phases: 2
• Step angle: 0.9° ± 5%
• Rated current: 0.6 A/Phase
• Holding torque: 1.128 N·m (11.5 kg·cm)
• Number of leads: 4
• Shaft diameter: 6.35 mm
• Weight: 1.1 kg
• Recommended driver: CW215