Dunkermotoren GR63X55

Technical Specifications

Nominal voltage options: 12 VDC, 24 VDC, 40 VDC, 48 VDC, 60 VDC; Continuous rated power: 99 W; Peak power: 286 W; Nominal speed range: 3000‑3450 rpm; Rotor inertia: 750 g·cm²; Motor weight: 1.7 kg; Standard protection class IP54, optional up to IP67; Standard ball bearing at output shaft.

Functional Features

Bidirectional rotation capability; Low cogging torque; High efficiency and low noise output; Customizable shaft length, shaft diameter and double‑ended shaft configuration; Support special winding and reinforced bearing options; Adaptable for external encoder and worm gearbox assembly.

Application Scenarios

Automatic door operators, conveyor systems, small‑scale robotics, automated logistics equipment, medical auxiliary drives, industrial actuator systems.

Performance Parameters

Nominal torque 0.24‑0.283 Nm; Stall torque 1.45‑3.04 Nm; No‑load speed 3500 rpm; Terminal resistance 0.2 Ohm; Terminal inductance 0.5 mH.

Material Composition

Aluminum alloy housing; Steel rotor shaft; Permanent‑magnet ferrite rotor; Carbon brush commutation assembly; Steel ball bearing sets; Epoxy‑coated stator windings.

Structural Characteristics

Cylindrical frame size 63 mm; Integrated brush holder assembly at rear end; Front‑end flange interface for gearbox mounting; Standard wiring terminal block; Closed‑end motor cover structure.

Working Principle

Brushed DC motor converts direct‑current electrical energy into mechanical rotary energy. Magnetic field interaction between stator permanent magnet and energized rotor winding generates torque. Carbon brushes commutate rotor current continuously to maintain fixed rotation direction.

Installation Requirements

Mount via front‑end flange; Keep mounting surface flat and vibration‑damped; Allow sufficient cooling air circulation around housing; Align shaft coupling concentrically; Avoid radial over‑load on output shaft; Mount motor in any orientation without special positional restriction.

Usage Notes

Select matched voltage winding according to power supply; Avoid continuous stall operation to prevent demagnetization; Periodically inspect carbon brush wear; Prevent liquid and dust ingress without higher‑grade protection modification; Apply proper torque for flange mounting bolts.