GDM1 — disc-type (axial) DC motors with permanent magnets, 16–550 W
GDM1 is a series of disc-type (axial) DC motors with permanent-magnet excitation.
- Type
- DC motor with NdFeB permanent-magnet excitation, slotless (ironless) disc rotor, drum commutator
- Power
- 16–550 W (GDM1-075F1 — 0.016 kW … GDM1-120N2 — 0.55 kW)
- Rated speed
- 2000–4200 rpm
- Stall torque M0
- 0.055–1.5 N·m
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
GDM1 is a series of disc-type (axial) DC motors with permanent-magnet excitation. The rotor is slotless, without iron, and the commutator is of drum type; because of this the motors have a very low moment of inertia and high dynamics, are easy to control over the whole speed range, and keep precise, uniform rotation even at speeds below one revolution per minute. The main design feature is the flat compact shape: in the shortest version the motor occupies only 39.5 mm along the axis. The manufacturer states that for the ratio of power to installation volume the GDM 12 N is the thinnest and most compact disc motor in the world. NdFeB magnets provide high torque, and a robust wire winding with a drum commutator gives significant overload capacity. Because there is no iron in the rotor there is no cogging torque, torque ripple is very small thanks to the fine pitch of the commutator segments, and the armature inductance reduces brush wear. The torque is practically constant over a wide speed range. The range includes eight basic types, from GDM1-075F1 (16 W, 3000 rpm, M0 0.055 N·m, J 0.5 kg·cm²) to GDM1-120N2 (550 W, 3500 rpm, M0 1.5 N·m, J 3.6 kg·cm²); intermediate models are GDM1-080F1, GDM1-80N1, GDM1-009F1, GDM1-010N1, GDM1-100N2 and GDM1-012N1, with rated speeds from 2000 to 4200 rpm. According to the technical documentation for the GDM1/DSM1 disc motors, they are designed for supply from converters with a voltage of 24…60 V. Insulation class F, bearings with permanent lubrication and an L10h life of 20 000 h, and vibration resistance per EN 60068-2-6. The motors can be ordered with a brake, tachogenerator, pulse encoder or gearbox. Applications are small servo drives with tight space limits: wheel and auxiliary drives of battery-powered machines, positioning axes, medical and laboratory equipment, and feed and dosing drives. The series belongs to DC machines, so in the catalogue it is listed on usk.ua as an alternative to small brush DC motors. A complete drive can be assembled with the b maXX 3300 servo controller (designed by the manufacturer for disc motors) or with the b maXX mobil battery controller.
Technical specifications
| Type | DC motor with NdFeB permanent-magnet excitation, slotless (ironless) disc rotor, drum commutator |
|---|---|
| Power | 16–550 W (GDM1-075F1 — 0.016 kW … GDM1-120N2 — 0.55 kW) |
| Rated speed | 2000–4200 rpm |
| Stall torque M0 | 0.055–1.5 N·m |
| Rotor moment of inertia | 0.5–3.6 kg·cm² |
| Axial length | from 39.5 mm in the shortest version |
| Link/supply voltage | 24…60 V (per GDM1/DSM1 technical documentation) |
| Insulation class | F |
| Bearing life | L10h 20 000 h |
| Options | brake, tachogenerator, encoder, gearbox |
Request a price and lead time
GDM1 — disc-type (axial) DC motors with permanent magnets, 16–550 W. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
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