
Worm gearboxes · STM Polska
VR-E worm gearboxes
VR-E worm gearboxes are the E build of the VR series: compact units for industrial drives that need a high speed reduction, stable running and little space. Like the standard VR, they come without a motor interface and with a solid input shaft, which gives more freedom in how the drive is put together. A handwheel with a handle drives the unit by hand, or a belt pulley brings the drive in from a motor mounted elsewhere.

The gearing is the classic worm and worm wheel arrangement, which passes torque smoothly and keeps the housing small for the reduction it delivers. The E build is aimed at everyday applications where the installation has to be simple, the behaviour has to be predictable and the drive has to be commissioned quickly, and it integrates with the machine without special adaptors.
VR-E units are used in new installations and in the modernisation of existing machines, holding the drive steady and keeping the process running. If you already run VR gearboxes, the E build uses the same solid input and the same drive options, so the selection questions are the same: output speed, torque, ratio, how the input is driven and how the unit mounts. Send us those and we will quote within one working day.
Main features
E build of the VR worm gearbox series
Solid input shaft with no standard motor interface
Handwheel or belt pulley drives the input shaft
Worm and worm wheel gearing for high reduction
Suits new installations and machine modernisation
Specifications
| Series | E build of the VR worm gearbox range |
|---|---|
| Input | Solid shaft, no standard motor interface |
| Input drive options | Handwheel or belt pulley |
| Gearing | Worm and worm wheel |
Applications
- New machine builds
- Modernisation of existing drives
- Belt driven speed reduction
- Manual adjustment through a handwheel
- General industrial drives
Documentation
Catalogue, ratio tables and dimensional drawings for the VR wersja E series are sent with every quotation. Request the documentation.
Questions about the VR wersja E series
What is the difference between VR and VR-E?
VR-E is the E build of the same worm gearbox series. Both come without a standard motor interface and with a solid input shaft, and both can be driven by a handwheel or a belt pulley. The published descriptions list the same construction and the same drive options, so the choice comes down to the exact build. Send us the ratio, the torque and the mounting and we will confirm which to quote.
How do I drive a VR-E gearbox?
Through the solid input shaft. A handwheel with a handle makes it a manual drive for setting and adjustment. A belt pulley on the same shaft takes the drive from a motor mounted elsewhere on the machine. There is no standard motor flange on this build, and that is what gives you the freedom in how the drive is arranged.
Is VR-E suitable for replacing a gearbox on an older machine?
It is used that way. The E build is meant for simple installation and quick commissioning, which is what a modernisation job needs, and the solid input shaft removes the job of matching a motor flange. Send us the mounting dimensions of the unit coming out, along with the output speed and the torque, and we will confirm the build.
Related series
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Request a quotation
Quote for vr-e worm gearboxes
Reply within one working day with a price, a lead time and the datasheet.
What lets us quote first time
- Ratio
- Input: IEC motor frame or free shaft
- Output torque or motor power
- Hollow bore, mounting position



