Five verified configurations
Choose between cylindrical 42ZWC and square 42ZWS housings with documented electrical and mechanical data.
SP42 42 mm Brushless DC Motor Series
Brushless DC Motor
Five verified 42 mm brushless DC motor configurations with 24–48 V windings, 3,000–10,000 RPM rated speed, 0.0625–0.2 N·m rated torque and Hall feedback.
Positioning accuracy
High torsional rigidity and constant torsional backlash over the entire gearbox service life ensure consistently high performance
Compactness
High torque density thanks to high performance and short design
Low maintenance
Highest quality standards for a long service life and extended maintenance intervals
Technical data
Configurable brushless rotary motion
42 mm brushless DC motors for compact precision equipment
The SP42 series combines 24 V and 48 V windings, Hall feedback and five verified motor configurations. Rated operating points span 3,000–10,000 rpm and 0.0625–0.2 N·m for application-specific selection.
Hall feedback
Three Hall signals support 120° electronic commutation and controlled brushless operation.
Broad operating range
Rated voltage, speed and torque options cover compact high-speed drives and lower-speed precision rotary modules.
Engineering information
Technical data
Compare the five SP42 configurations in selectable HTML tables. On mobile devices, each table scrolls horizontally inside its own panel.
Electrical data
Motor and winding specification matrix
| Specification | 42ZWC75L-1 | 42ZWC75L-2 | 42ZWS50X-1 | 42ZWS63X-1 | 42ZWS75X-1 |
|---|---|---|---|---|---|
| Pole pairs | 2 | 2 | 5 | 5 | 5 |
| Line resistance | 0.24 Ω | 0.19 Ω | 2.482 Ω | 1.261 Ω | 0.987 Ω |
| Line inductance | 0.15 mH | 0.12 mH | 1.062 mH | 0.586 mH | 0.434 mH |
| Winding connection | Star | Star | Star | Star | Star |
| Insulation class | B | B | B | B | B |
| Duty cycle | S2 | S2 | S2 | S2 | S2 |
| Feedback | Hall elements | Hall elements | Hall elements | Hall elements | Hall elements |
| Commutation angle | 120° | 120° | 120° | 120° | 120° |
| Weight | 425.8 g | 425.8 g | 260 g | 380 g | 500 g |
| Torque constant | 0.036 N·m/A | 0.019 N·m/A | 0.052 N·m/A | 0.052 N·m/A | 0.051 N·m/A |
| Back-EMF constant, RMS | 3.77 V/krpm | 1.99 V/krpm | 5.44 V/krpm | 5.44 V/krpm | 5.44 V/krpm |
| Rotor inertia | 0.084 kg·cm² | 0.084 kg·cm² | 0.05 kg·cm² | 0.1 kg·cm² | 0.15 kg·cm² |
Operating data
Rated and performance specification matrix
| Specification | 42ZWC75L-1 | 42ZWC75L-2 | 42ZWS50X-1 | 42ZWS63X-1 | 42ZWS75X-1 |
|---|---|---|---|---|---|
| Rated voltage | 48 V | 24 V | 24 V | 24 V | 24 V |
| Rated power | 209.4 W | 83 W | 19.6 W | 39.3 W | 58.1 W |
| Rated torque | 0.2 N·m | 0.08 N·m | 0.0625 N·m | 0.125 N·m | 0.185 N·m |
| Rated speed | 10,000 rpm | 10,000 rpm | 3,000 rpm | 3,000 rpm | 3,000 rpm |
| Rated current | 5.5 A | 4.3 A | 1.2 A | 2.4 A | 3.6 A |
| No-load speed | 12,000 rpm | 12,000 rpm | 4,000 rpm | 4,000 rpm | 4,000 rpm |
| No-load current | 0.86 A | 0.7 A | 0.15 A | 0.3 A | 0.45 A |
| Motor efficiency | 80% | 80% | 72% | 77.6% | 76% |
| Noise | <50 dB | <50 dB | <50 dB | <50 dB | <50 dB |
| Housing-to-ambient thermal resistance | 0.085 K/W | 0.25 K/W | 0.75 K/W | 0.38 K/W | 0.25 K/W |
| Ambient temperature | 25 °C | 25 °C | 31.3 °C | 31.3 °C | 31.3 °C |
| Maximum winding temperature | 75 °C | 75 °C | 68.5 °C | 68.5 °C | 68.5 °C |
| Peak torque | 0.6 N·m | 0.24 N·m | 0.1875 N·m | 0.375 N·m | 0.555 N·m |
| Peak current | 16.5 A | 12.9 A | 3.6 A | 7.2 A | 10.8 A |
System integration
Select the winding and housing for the operating point
The SP42 series supports both compact high-speed drives and 3,000 rpm precision rotary modules. Match the required voltage, continuous torque, speed and mounting geometry to the verified model data.
- Confirm the operating point against the model-specific performance curve
- Use a compatible 120° electronic commutation drive
- Verify shaft load, S2 duty and thermal conditions in the final assembly
Application fields
Compact brushless motion for precision machine designs
Suitable for controlled rotary functions where a 42 mm frame, Hall feedback and a documented operating point are required.
Medical equipment
Compact pumps, sampling modules and instrument mechanisms.
Robotics
Rotary joints, grippers and end-effector mechanisms.
Precision instruments
Controlled motion for laboratory and measurement equipment.
Automation modules
Rollers, feeders and compact auxiliary axes.
Discuss your 42 mm brushless DC motor requirement with our engineers.
Share the load, speed, duty cycle, drive and installation requirements for model selection and integration support.
Contact us
Would you like to learn more about our solutions?
We would be happy to advise you—personally, competently, and tailored to your requirements.
Perfection in a new dimension
Further Information
Short delivery times available for selected product configurations.
The TP+ HIGH TORQUE enables maximum torque density and maximum torsional rigidity—ideal for demanding applications with dynamic load changes and high positioning accuracy.
alpha Advanced Line gearboxes with increased durability and food-grade lubrication available.
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.
With cynapse® and smart services, you can unleash the full potential of your drive system: sensor data is processed, visualized, and analyzed intelligently. Find out how the combination of gearboxes with cynapse® and our Smart Services can make your digital production faster, safer, and more efficient.
Related products
Related products
-
Brushless DC Motor
SP60 60 mm Brushless DC Motor Series
-
Brushless DC Motor
SP57 57 mm Brushless DC Motor Series
-
Brushless DC Motor
SP36ZWC72L-1 36 mm Brushless DC Motor
-
Brushless DC Motor
SP28ZWC58L-1 28 mm Brushless DC Motor
