Hybrid stepper motor 20BH42-080A-15

compactNEMA 8motion control

Product Overview
The 20BH42-080A-15 is a 20mm (NEMA 8) 2-phase hybrid stepper motor delivering 0.029 N·m (0.3 kg·cm) of holding torque in a 42mm body. With 0.8 A/phase rated current, it provides precise, repeatable positioning for compact motion control systems. Recommended driver: CW215.

Key Highlights

• 2-phase, 1.8° step angle — 0.3 kg·cm holding torque
• 0.8 A/phase rated current — 20 mm (NEMA 8) frame
• 42 mm body length — 4 mm shaft diameter

Electrical Specifications
Step Angle: 1.8° ± 5%
Holding Torque: 0.029 N·m (0.3 kg·cm)
Rated Current: 0.8 A/phase
No. of Phases: 2
No. of Leads: 4
Shaft Diameter: 4 mm
Frame Size: 20 mm (NEMA 8)
Body Length: 42 mm
Weight: 0.2 kg
Recommended Driver: CW215

Mechanical Drawing
Mechanical drawing available for the 20BH series showing dimensional details relevant to installation and mounting.

Torque-Speed Curve
Torque-speed characteristic curve available for the 20BH series to evaluate dynamic performance under load.

Caractéristiques / Spécifications techniques

• Model: 20BH42-080A-15
• Series: 20BH Series (20 mm / NEMA 8)
• Phase: 2
• Step Angle: 1.8° ± 5%
• Holding Torque: 0.029 N·m (0.3 kg·cm)
• Rated Current: 0.8 A/phase
• No. of Leads: 4
• Shaft Diameter: 4 mm
• Frame Size: 20 mm (NEMA 8)
• Body Length: 42 mm
• Weight: 0.2 kg
• Recommended Driver: CW215