08461817R
May 27, 2026

08461817R

Model: 0-84618-7R (08461817R) Product Overview 0-84618-7R is a Baldor Reliance E660 series NEMA 34 permanent magnet brushed DC servo motor. It is the highest-power model in the 0846181xR lineup, designed for heavy-duty, high-inertia closed-loop positioning applications.

Description

Technical Specifications

  • Model: 0-84618-7R (08461817R)

  • Series: E660 Permanent Magnet Brushed DC Servo

  • Frame: NEMA 34 (86mm square)

  • Rated Voltage: 90 VDC

  • Rated Power: 1.5 kW

  • Continuous Torque: 5.4 Nm

  • Peak Torque: 16.2 Nm (3× overload)

  • Rated Speed: 2500 RPM

  • Max Speed: 4000 RPM

  • Rated Current: 8.2 A

  • Peak Current: 24.6 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: ~9.0 kg

Key Features

  • Highest Torque & Power: 5.4 Nm continuous / 1.5 kW, for heavy loads.

  • Precision Closed-Loop: 500 PPR differential encoder for accurate positioning.

  • High Acceleration: Suitable for high-inertia loads and dynamic starts/stops.

  • Robust Industrial Design: IP44 protection and Class F insulation for durability.

  • Easy Maintenance: Standard brush and bearing design for simple servicing.

Applications

  • Heavy Industrial Automation: Heavy-duty CNC, large packaging machinery, main axes of injection molding machines.

  • Precision Positioning: Large linear stages, heavy machine tool feeds, high-load robotic arms.

  • High-Inertia Loads: Centrifuges, large fans, and material handling equipment.

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

Operating Instructions

1. Mounting
  • Flange: NEMA 34, 4×M5 bolts, torque to 2.5 Nm.

  • Coupling: Coaxiality ≤ 0.08 mm to avoid radial load.

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

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

  • Encoder: +5V, GND, A±, B±, Z±.

3. Commissioning
  • Drive Setup: DC Servo, 90VDC, 8.2A, 500PPR.

  • No-Load Jog: 500 RPM – check rotation direction, noise, and encoder feedback.

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

4. Maintenance
  • 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).


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