Hybrid stepper motor 20BH28-060B-20

compactNEMA 8industrial

Product Overview
The 20BH28-060B-20 is a 20mm (NEMA 8) 2-phase hybrid stepper motor delivering 0.018 N·m (0.18 kg·cm) of holding torque in a 28mm body. With a rated current of 0.6 A/phase, it provides precise motion control suitable for compact industrial applications. Recommended driver: CW215.

Key Highlights

• 2-phase, 1.8° step angle — 0.18 kg·cm (0.018 N·m) holding torque
• Rated current 0.6 A/phase — 20 mm (NEMA 8) frame
• 28 mm body length, 5 mm shaft diameter

Electrical Specifications (table)
Step angle — 1.8° ± 5%
Holding torque — 0.018 N·m (0.18 kg·cm)
Rated current — 0.6 A/Phase
No. of phases — 2
No. of leads — 4
Shaft diameter — 5 mm
Frame size — 20 mm (NEMA 8)
Body length — 28 mm
Weight — 0.08 kg
Recommended driver — CW215

Mechanical & Performance Images
Mechanical drawing and torque-speed curve are provided for the 20BH series to illustrate dimensions and performance characteristics.

Technical specifications

• Model / Variant: 20BH28-060B-20
• Series: 20BH28
• Frame size: 20 mm (NEMA 8)
• Body length: 28 mm
• Step angle: 1.8° ± 5%
• Holding torque: 0.0177–0.018 N·m (0.18 kg·cm)
• Rated current: 0.6 A per phase
• Phases: 2-phase hybrid stepper
• No. of leads: 4
• Shaft diameter: 5 mm
• Weight: 0.08 kg
• Recommended driver: CW215