Stepper motor 86BH142RS85IM

NEMA 34integrated-driveRS-485

Product Overview
The 86BH142RS85IM is an 86 mm integrated stepper servo with RS485 communication and a battery-free multi-turn encoder delivering up to 8.2 N·m of output torque. Designed for larger automation axes, this integrated architecture reduces external motion components while providing retained-position feedback for motion control systems.

KEY HIGHLIGHTS

• 8.2 N·m maximum output torque
• 18–70 VAC input voltage range
• RS485 communication interface
• Battery-free multi-turn feedback (1,599 turns, fixed range −100 to +1499)
• 4096-line (16,384-count) encoder feedback

Quick Specifications

• Model: 86BH142RS85IM
• Frame size: 86 mm (NEMA 34)
• Integrated body length: 142.1 mm
• Max output torque: 8.2 N·m
• Input voltage: 18–70 VAC
• Communication: RS485
• Encoder: 4096 lines (16,384 counts)
• Shaft diameter: 14 mm
• Weight: approx. 3.7 kg

Integrated Servo Overview

• Model No.: 86BH142RS85IM
• Frame Size: 86 mm (NEMA 34)
• Integrated Body Length: 142.1 mm (L size: 117.6 mm)
• Shaft Diameter: 14 mm
• Input Voltage Range: 18–70 VAC
• Maximum Output Torque: 8.2 N·m
• Communication: RS485

Electrical, Feedback & Configuration

• Current setting: 0.2–3.2 A software-adjustable (factory-matched motor: 6.0 A)
• Encoder feedback: 4096 lines (16,384 counts)
• Microstep setting: host-configurable, positive integer above 200 (factory default 4000)
• Address setting: factory default 1; adjustable by host software
• Protections: over-voltage, under-voltage, over-current, winding open circuit, position deviation
• Non-volatile storage: configuration parameters in internal MCU FLASH
• Operating conditions: 0°C to +40°C, 20% to 90% RH

Mechanical Drawing
Mechanical drawing available on the product page for dimensional reference and mounting details; consult drawing for installation and mounting hole patterns.

Technical Specifications

• Phase resistance: 0.59 Ω ±20%
• Phase inductance: 5.5 mH ±20%
• Rotor inertia: approx. 3600 g·cm²
• Weight: approx. 3.7 kg
• Multi-turn feedback: 1,599-turn battery-free multi-turn feedback (fixed range −100 to +1499)
• Microstep default: 4000 (host-configurable)
• Address default: 1 (host-adjustable)
• Protection functions and storage: as listed above