Two-phase stepper motor 86BH128-300A-55D

hybrid stepperNEMA 34industrial

Product Overview
The 86BH128 is an 86mm (NEMA 34) hybrid stepper motor with a 128 mm body length, providing 4.90 N·m (50 kg·cm) holding torque at 3.0 A/phase. Its extended body delivers higher torque while maintaining moderate current consumption, making it suitable for heavy CNC routers, plasma tables and large-format engraving equipment in industrial environments.

Key Highlights

• Holding torque: 4.90 N·m (50 kg·cm)
• Frame: 86 mm (NEMA 34), body length 128 mm
• 2-phase, 4-lead configuration
• Shaft diameter: 12 mm
• Recommended driver: CWD860H

Electrical Specifications
Step angle: 1.8° ±5%
Rated current: 3.0 A/phase
Holding torque: 4.90 N·m (50 kg·cm)
Phases: 2
Leads: 4
Shaft diameter: 12 mm
Frame size: 86 mm (NEMA 34)
Body length: 128 mm
Weight: 3.6 kg
Recommended driver: CWD860H

Mechanical & Performance
Mechanical drawings are available for the 86BH series; torque-speed curves and variant-specific performance data can be provided on request to assist system integration and sizing.

Technical specifications

• Model: 86BH128
• Frame size: 86 mm (NEMA 34)
• Body length: 128 mm
• Step angle: 1.8° ±5%
• Holding torque: 4.90 N·m (50 kg·cm)
• Rated current: 3.0 A/phase
• Phases: 2
• Leads: 4
• Shaft diameter: 12 mm
• Weight: 3.6 kg
• Recommended driver: CWD860H