Coreless rotor design
The ironless winding structure reduces rotor inertia and supports responsive acceleration and deceleration in compact motion systems.
High torsional rigidity and constant torsional backlash over the entire gearbox service life ensure consistently high performance
High torque density thanks to high performance and short design
Highest quality standards for a long service life and extended maintenance intervals
The SP25ZYCC43-2 25 mm brushed coreless DC motor combines an ironless rotor, a 24 VDC winding and graphite-brush commutation. Rated data includes 11,000 rpm no-load speed, 30 mN·m maximum continuous torque and 88% maximum efficiency.
The ironless winding structure reduces rotor inertia and supports responsive acceleration and deceleration in compact motion systems.
The 25 mm motor body provides a defined shaft and mounting interface for space-conscious rotary mechanisms.
Maximum continuous torque is specified at 30 mN·m with a maximum continuous speed of 10,000 rpm.
| Parameter | Unit | 25ZYCC43-2 |
|---|---|---|
| Motor model | – | 25ZYCC43-2 |
| Rated voltage | V | 24 |
| No-load speed | rpm | 11,000 |
| No-load current | A | 0.18 |
| Maximum continuous torque | mN·m | 30 |
| Maximum continuous speed | rpm | 10,000 |
| Maximum continuous current | A | 1.8 |
| Maximum efficiency | % | 88 |
| Peak torque | mN·m | 270 |
| Peak current | A | 13 |
| Terminal resistance | Ω | 1.8 |
| Motor inductance | mH | 0.22 |
| Torque constant | mN·m/A | 20.3 |
| Back-EMF constant | rpm/V | 473 |
| Speed constant | rpm/mN·m | 41.75 |
| Rotor inertia | g·cm² | 14.9 |
| Mechanical time constant | ms | 6.5 |
| Insulation class | – | F / 155 °C |
| Housing-to-ambient thermal resistance, no load | K/W | 15 |
| Ambient temperature | °C | −20 to 65 |
| Maximum winding temperature, no load | °C | 155 |
| Brush type | – | Graphite brush |
| Commutator segments | – | 11 |
| Weight | g | 105 |


The ironless rotor architecture supports rapid speed changes in a compact 25 mm package. The 24 VDC winding, graphite-brush commutation and defined shaft geometry provide clear electrical and mechanical integration points.

Compact rotary mechanisms where installation space, low inertia and responsive control are important selection factors.
Actuation and adjustment functions that require a compact motor, defined shaft interface and 24 VDC supply.
Space-constrained drive functions for measurement, positioning and laboratory equipment.
Custom equipment where load, speed, duty cycle and thermal conditions are reviewed during motor selection.
Confirm the load point, duty cycle, controller, shaft connection and thermal path before final motor selection.
Share the load, speed, duty cycle, controller, installation space and shaft interface for application review.
Compare additional compact motor options for your machine design.
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Short delivery times available for selected product configurations.
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The TP+ for coordinated pinion-rack systems for medium to high requirements. Typical areas of application in wood, plastic, and composite processing, in machining centers, or in automation.
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