Ø45 mm hollow bore
A large center passage supports through-axis routing and coaxial mechanical integration without an external transmission path.
SPHYC94248-30-H-IE9000-JJ 94 mm Large-Bore Hollow Shaft Stepper Motor
Large-Bore Hollow Shaft Stepper Motor
The SPHYC94248-30-H-IE9000-JJ is a 94 × 94 mm large-bore hollow shaft stepper motor with a Ø45 mm through bore, 0.6 N·m holding torque, 0.9° step angle and precision 0.02/0.01 mm radial and axial runout.
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
SPHYC94248-30-H-IE9000-JJ hollow shaft stepper motor
A Ø45 mm through bore with precision rotary positioning
The SPHYC94248-30-H-IE9000-JJ combines a 94 × 94 mm frame, slim 34.8 mm body and large center passage for compact automation assemblies that need accurate motion around cables, optics or process media.
0.6 N·m holding torque
The two-phase motor delivers stable holding capability with a precise 0.9° basic step angle.
Precision runout control
Radial runout is 0.02 mm and axial end-face runout is 0.01 mm for accurate rotating assemblies.
Engineering information
Technical data
94 × 94 mmFrame size
Ø45 mmHollow bore diameter
0.6 N·mHolding torque
0.9°Basic step angle
Motor specification
Electrical, mechanical and environmental parameters
Review mounting, electrical and environmental limits against the required operating conditions.
| Parameter | Value |
|---|---|
| Frame size | 94 × 94 mm |
| Hollow bore diameter | Ø45 mm |
| Motor body thickness | 34.8 mm |
| Number of phases | 2 |
| Basic step angle | 0.9° |
| Basic step-angle error | ±0.09° |
| Rated phase current | 3 A |
| Phase resistance | 0.9 Ω ±10% |
| Phase inductance | 0.54 mH ±20% |
| Holding torque | 0.6 N·m |
| Detent torque | 0.06 N·m |
| Rotor inertia | 240 g·cm² |
| Radial runout | 0.02 mm |
| Axial / end-face runout | 0.01 mm |
| Maximum radial load (Fr) | 100 N |
| Maximum axial load (Fz) | 188 N |
| Maximum radial moment (Mr) | 14 N·m |
| Maximum axial moment (Mz) | 0.22 N·m |
| Dielectric strength | 600 VAC / 1 s |
| Insulation resistance | 100 MΩ at 500 VDC |
| Insulation class | H |
| Temperature rise | 80 K |
| Operating temperature | −25°C to +60°C |
| Weight | 560 g |
Large-bore motor architecture
Slim integration around a Ø45 mm center passage
The SPHYC94248-30-H-IE9000-JJ combines a large hollow bore with a 94 × 94 mm mounting envelope and 34.8 mm body thickness, supporting compact through-axis motion designs.
- 94 × 94 mm square mounting frame
- Ø45 mm unobstructed hollow bore
- 0.02 / 0.01 mm radial and axial runout
Application fields
For precision mechanisms that need a large through-axis passage
The large hollow bore, compact axial profile and controlled runout suit integrated rotary systems where cables, optics, shafts or process media must pass through the motor center.
Semiconductor equipment
Compact rotary and positioning mechanisms with central routing requirements.
Optical inspection
Through-axis optical paths and precision inspection assemblies.
Rotary indexing
Low-profile indexing modules requiring stable holding and accurate step motion.
Custom automation
Integrated motion platforms with cables, tubing or shafts routed through the axis.
System integration
Mechanical and electrical planning data
Evaluate mounting, load, current, insulation and ambient requirements for the intended machine configuration.
Frame size94 × 94 mm
Body thickness34.8 mm
Hollow boreØ45 mm
Rated phase current3 A
Insulation classClass H
Operating temperature−25°C to +60°C
Discuss your Ø45 mm large-bore motion requirement with our engineers.
Share your mounting, load, speed, drive and environmental requirements for 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.
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