Low-backlash transmission
Supports precise positioning and repeatable motion across compact machine axes.
SPGSPX045 Vacuum High & Low Temperature Gearbox
Vacuum Gearbox
Compact 45 mm vacuum gearbox with ratios from 3 to 1000, rated output torque up to 25 N·m, and application-specific 1 × 10⁻⁷ Pa and −196 to +200 °C configurations.
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
Precision transmission for vacuum systems
Reliable torque transmission where cleanliness and precision matter
A compact vacuum-compatible transmission platform for precision axes and controlled motion in advanced equipment.
Vacuum-oriented design
Designed for integration into vacuum equipment where material selection and clean operation are critical.
Compact torque density
Adds reduction and torque capability without unnecessary system complexity.
Engineering information
Technical data
Model-specific data for the SPGSPX045 vacuum high and low temperature gearbox. Tables are provided as searchable HTML for engineering review.
SPGSPX045
General performance
| Specification | Value | Notes |
|---|---|---|
| Frame series | 45 mm | Approx. 42 mm square housing outline |
| Vacuum level | 1.0 × 10⁻⁷ Pa | Final materials, lubrication and interfaces are configuration dependent |
| Temperature range | −196 to +200 °C | Application-specific configuration and validation required |
| Available ratios | 3–1000 | 1, 2 or 3 stages depending on ratio |
| Rated output torque | Up to 25 N·m | Ratio dependent |
| Precision backlash | ≤15 / ≤18 / ≤22 arcmin | Stage 1 / Stage 2 / Stage 3 |
| Torsional stiffness | 0.9 N·m/arcmin | — |
| Noise | ≤60 dB | — |
| Rated input speed | 4500 rpm | — |
| Maximum input speed | 6000 rpm | — |
| Emergency stop torque | 3 × rated output torque | — |
| Permissible radial force | 170 N | — |
| Permissible axial force | 140 N | — |
| Efficiency | ≥94% / ≥91% / ≥89% | Stage 1 / Stage 2 / Stage 3 |
| Service life | 20,000 h | Under specified operating conditions |
| Weight | 1.0 / 1.2 / 1.4 kg | Stage 1 / Stage 2 / Stage 3 |
Ratio-specific data
Inertia and rated output torque
| Ratio | Stage | Rotational inertia J1 (kg·cm²) | Rated output torque (N·m) |
|---|---|---|---|
| 3 | 1 | — | — |
| 4 | 1 | 0.022 | 18 |
| 5 | 1 | 0.019 | 16 |
| 7 | 1 | — | — |
| 8 | 1 | 0.017 | 9 |
| 10 | 1 | 0.016 | 7 |
| 9 | 2 | 0.015 | — |
| 12 | 2 | 0.007 | — |
| 15 | 2 | 0.007 | — |
| 16 | 2 | 0.005 | 20 |
| 20 | 2 | 0.007 | 20 |
| 25 | 2 | 0.007 | 20 |
| 32 | 2 | 0.007 | 20 |
| 40 | 2 | 0.005 | 20 |
| 50 | 2 | 0.005 | 20 |
| 64 | 2 | 0.015 | 20 |
| 60 | 3 | 0.007 | — |
| 64 | 3 | 0.007 | 25 |
| 80 | 3 | 0.007 | 25 |
| 100 | 3 | 0.007 | 25 |
| 120 | 3 | 0.005 | — |
| 125 | 3 | 0.007 | 25 |
| 160 | 3 | 0.013 | 25 |
| 200 | 3 | 0.007 | 25 |
| 250 | 3 | — | 25 |
| 256 | 3 | — | 20 |
| 280 | 3 | — | — |
| 320 | 3 | 0.007 | 20 |
| 350 | 3 | — | — |
| 400 | 3 | — | 20 |
| 500 | 3 | — | — |
| 512 | 3 | 0.007 | — |
| 1000 | 3 | — | — |
Mechanical interface
Dimensions and mounting data
| Interface item | Value |
|---|---|
| Overall length L1 / L2 / L3 | 62 / 77.5 / 93 mm |
| Output shaft extension | 26 mm |
| Front mounting PCD | Ø50 mm |
| Servo interface | A = 30, B = 8, C = 46, E = M4 |
| Stepper interface | A = 22, B = 5, D = 31, E = Ø3.5 |
Final materials, lubrication, cable and interface configuration must be confirmed for the target vacuum level, temperature range, radiation exposure and duty cycle.
System integration
A clean mechanical interface for precision motion systems
Use the supplied drawings and technical data to confirm mounting, reduction ratio, load conditions and coupling geometry.
- Review mounting orientation and available installation envelope
- Match ratio and load requirements to the application duty cycle
- Validate shaft, flange and coupling interfaces before assembly
Application fields
Built for advanced vacuum and precision equipment
Suitable for motion stages that require compact transmission, controlled backlash and dependable mechanical integration.
Semiconductor equipment
Wafer handling, process modules and precision transfer axes.
Vacuum positioning
Compact rotary or linear stages operating in controlled environments.
Optical systems
Alignment mechanisms and repeatable adjustment axes.
Laboratory equipment
Research platforms, test fixtures and vacuum instruments.
Discuss your SPGSPX045 requirement with our engineers.
Share your load, speed, duty cycle, controller 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.
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