MM-GP08-02560
Planetary reduction, 256:1 over 4 stages, rated to 80 mN·m at the output.
- Class
- Planetary gearhead
- Lifecycle
- active
- Revision
- A
- Review
- Verified record
- Sample
- Quoted with the configuration
- Lead time
- Quoted with the configuration
- Verified
- 2026-08-18
Envelope and model
- Model bounding box, X × Y × Z
- 8.0 mm × 8.0 mm × 22.0 mm
- Model revision
- A, reviewed 2026-08-18
- Mesh
- 1,626 triangles
Reviewed specifications
Rated output torque is a maximum. Efficiency is typical for the stage count.
| Specification | Value | Basis | Note |
|---|---|---|---|
| Gear type | Planetary | Published | |
| Envelope diameter | 8mm | Published | |
| Reduction ratio | 256:1 | Published | |
| Stages | 4 | Published | |
| Length | 16.4mm | Published | |
| Rated output torque | 80mN·m | Maximum | Gearhead rated output torque. Do not size a configuration above this limit. |
| Typical efficiency | 58% | Typical | Typical value for the stage count. Efficiency falls with temperature, speed and run-in state. |
| Output rotation | Same as the input | Published | |
| Backlash | Not published | Not established | Confirmed on the controlled drawing for the released part. |
| Radial and axial load | Not published | Not established | Set against the application in a fit review. |
A reduction trades speed for torque.
It multiplies one, divides the other, and loses some of both to friction in every stage.
T_out = T_in × 256 × 0.58, n_out = n_in ÷ 256
- T_in
- motor torque at the gearhead input
- T_out
- torque at the gearhead output, capped by the rated output torque
- n_in
- motor speed at the input
- n_out
- speed at the output, before gearhead drag
Compatible parts
Published configurations using this ratio
| Configuration | No-load output speed rpm | Continuous output torque mN·m | Torque margin × | Rated voltage V |
|---|---|---|---|---|
| MM-C0817-P02560-030A | 62.5 | 22.3 | 3.59 | 3.0 |
Application fit and cautions
Read out of this record's own numbers.
Documents, models and next steps
Free and ungated
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A sanitized browser model (GLB, revision A, reviewed 2026-08-18) is published for this envelope: Download the GLB model
Not published yet
A 2D PDF drawing, a DXF and a neutral STEP file are not published for this record today, so there is no link here to a file that does not exist. A configured drawing carries tolerances and interface dimensions we will stand behind, which is why it comes out of a short qualified request rather than a download button.
Record MM-GP08-02560, revision A, verified by Micro Motion application engineering on 2026-08-18. Catalog 2026-08-18.public.1.