Model Interpretation

08461811R: Complete Part Number (Short Number: 0-846181-1R)

0-846181: Base Model (Baldor DC Servo Platform)

1R: Electrical/Mechanical Configuration Version (with encoder, standard windings, no brake) Technical Specifications

Motor type: Brushed permanent magnet DC servo motor

Rated voltage: 90 VDC

Rated torque: Approximately 3.2 Nm (continuous)

Peak torque: Approximately 9.6 Nm

Rated speed: 2500 RPM

Maximum speed: 4000 RPM

Encoder: Built-in incremental type (500 PPR, differential)

Shaft diameter: 5/8 inch (15.88 mm), keyed shaft

Mounting flange: NEMA 34 standard

Weight: Approximately 7.5 kg

Insulation class: F grade (155°C)

Protection class: IP44

Interface and leads

Power wire: 4-core (armature + ground)

Encoder wire: 6-core (A/B/Z differential + 5V + ground)

Outlet method: Rear terminal box

Installation: Fixed by flange through hole, compatible with standard servo installation dimensions Core function

High torque density: Torque output per unit volume is superior to that of ordinary DC motors.

Built-in closed-loop: Integrated encoder, simplifies system wiring and debugging.

Wide voltage compatibility: Supports 24–180 VDC, compatible with multiple brands of DC servo drives.

Industrial-grade durability: Reinforced bearing and brush design, suitable for long-term continuous operation. Applicable scenarios

Industrial Automation: CNC cutting machines, packaging machinery, machine tool feed axes

Precise Positioning: Heavy-duty displacement tables, robot joints, non-standard automation equipment

Replacement and Upgrade: Replace Electro-Craft E643/E660 series DC servo motors

Traditional Servo Systems: Compatible with Baldor, Reliance, etc. brand DC servo drives

Usage and Maintenance

Power Supply: Recommended 90 VDC rated voltage, avoid long-term low-voltage full load

Installation: Ensure the coaxiality of the load ≤ 0.08 mm, avoid radial overload

Encoder: Away from strong electromagnetic interference, cable length ≤ 10 m

Brush: Check every 2000 hours, replace immediately if wear exceeds limit

Bearings: Supplement with high-temperature lubricating grease every 4000 hours to extend lifespan