Hybrid stepper motor 28BH51-100B-20

NEMA 11for roboticsindustrial

Product overview
The 28BH51-100B-20 is a 28 mm (NEMA 11) 2-phase hybrid stepper motor providing 0.088 N·m (0.9 kg·cm) holding torque in a 51 mm body. Rated at 1 A/phase with a 5 mm shaft and 4 leads, it suits precision motion control tasks in industrial automation, CNC, robotics and instrumentation. Recommended driver: CW215.

Key features

• 2-phase, 1.8° step angle — 0.088 N·m (0.9 kg·cm) holding torque
• Rated current: 1 A/phase
• Frame: 28 mm (NEMA 11), body length 51 mm
• Shaft diameter: 5 mm — 4 leads
• Model family: 28BH series — Model: 28BH51-100B-20

Electrical specifications
Step angle: 1.8° ± 5%
Holding torque: 0.088 N·m (0.9 kg·cm)
Rated current: 1 A/Phase
Number of phases: 2
Number of leads: 4
Frame size: 28 mm (NEMA 11)
Body length: 51 mm
Shaft diameter: 5 mm
Weight: 0.18 kg
Recommended driver: CW215
Datasheet identifier: 28BH51-100B-20

Mechanical & performance
Mechanical drawings for the 28BH series are available. Torque-speed curves and performance data provided for design validation and motor selection.

Product datasheet
Datasheet identifier: 28BH51-100B-20

Typical applications

• Industrial automation and positioning systems
• CNC machines and axis control
• Robotics and collaborative robots
• Laboratory instruments and medical devices (non-implantable)