Technical Specifications

• Rated Voltage: 90 VDC

• Rated Power: 1.2 kW (approx.)

• Continuous Torque: 4.5 Nm

• Peak Torque: 13.5 Nm (3× overload)

• Rated Speed: 2500 RPM

• Max Speed: 4000 RPM

• Rated Current: 6.8 A

• Peak Current: 20.4 A

• Encoder: 500 PPR differential A/B/Z, 5VDC

• Shaft Diameter: 5/8" (15.88 mm) with keyway

• Protection Class: IP44 (shaft IP54)

• Insulation Class: F (155°C)

• Weight: ~8.2 kg

Key Features

• High Continuous Torque: 4.5 Nm for medium-heavy loads & high inertia.

• Precision Closed-Loop: 500 PPR differential encoder, noise-resistant positioning.

• Wide Speed Range: 2500 RPM rated / 4000 RPM max.

• Industrial Durability: IP44 + Class F insulation for harsh environments.

• Easy Maintenance: Standard brushes/bearings, simple replacement.

Applications

• Industrial Automation: Heavy CNC, packaging/printing lines, injection molding servo axes.

• Precision Positioning: Large linear stages, machine tool feed, robotic arms.

• Retrofit: Replaces 08461811R / 08461813R for higher load capacity.

• Compatible Drives: Baldor DC1, DC-35, and other 90VDC servo drives.

Operating Instructions

• NEMA 34 flange: 4×M5 bolts, torque to 2.5 Nm.

• Shaft coupling: Coaxiality ≤ 0.08 mm to avoid radial load.

• Cables: Power ≥14AWG; encoder: twisted pair shielded, length ≤10 m.

• Power: A+ (armature +), A− (armature −), FG (ground).

• Encoder: +5V, GND, A±, B±, Z±.

• Drive Setup: DC Servo, 90VDC, 6.8A, 500PPR.

• No-load Jog: 500 RPM – check rotation, noise, encoder feedback.

• Load Gradually: Up to rated torque; monitor temperature & stability.

• Brushes: Inspect every 2000 hours; replace if worn to 5mm.

• Bearings: Regrease every 4000 hours (Mobil XHP 222).

• Insulation Test: Annually; armature-to-ground ≥1 MΩ (500VDC megger)