MM-C2137-120A
Coreless brushed DC motor winding on the C2137 body, ⌀21 mm by 36.8 mm, rated 12.0 V.
- Class
- Coreless brushed DC
- 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
- 21.0 mm × 21.0 mm × 41.7 mm
- Model revision
- A, reviewed 2026-08-18
- Mesh
- 8,970 triangles
Reviewed specifications
The full electrical record for this winding.
| Specification | Value | Basis | Note |
|---|---|---|---|
| Motor class | Coreless brushed DC | Published | |
| Envelope diameter | 21mm | Published | |
| Body length | 36.8mm | Published | |
| Mass | 68.5g | Published | |
| Rated voltage | 12.0V | Published | |
| Rated output power | 2.68W | Published | |
| Rated torque | 4.41mN·m | Published | |
| Rated speed | 5,800rpm | Published | |
| Rated current | 287mA | Published | |
| No-load speed | 7,050rpm | Published | |
| No-load current | 15mA | Published | |
| Stall torque | 24.8mN·m | Published | |
| Stall current | 1,550mA | Published | |
| Torque constant | 16mN·m/A | Calculated | Derived from the published stall torque and stall current pair. |
| Commutator segments | 5 | Published |
P = T × ω = 4.41 mN·m × 5,800 rpm = 2.68 W
- P
- mechanical output power at the rated point
- T
- rated torque
- ω
- rated speed, converted to radians per second
The winding's line, before reduction.
The same relationship at the motor shaft, where the numbers are published rather than carried through a gearhead.
| Output torque mN·m | Output speed rpm | Point |
|---|---|---|
| 0.00 | 7,050 | No load |
| 4.410 | 5,800 | Rated continuous point |
| 6.20 | 5,288 | Linear interpolation |
| 12.40 | 3,525 | Linear interpolation |
| 18.60 | 1,763 | Linear interpolation |
| 24.80 | 0 | Stall of the winding |
Compatible parts
Other windings in the same body
| SKU | Rated voltage V | No-load speed rpm | Rated torque mN·m | Stall torque mN·m | Rated current mA |
|---|---|---|---|---|---|
| MM-C2137-060A | 6.0 | 6,770 | 3.92 | 16.1 | 534 |
| MM-C2137-120B | 12.0 | 8,210 | 4.41 | 31.6 | 336 |
| MM-C2137-120C | 12.0 | 2,480 | 4.9 | 17.4 | 110 |
| MM-C2137-120D | 12.0 | 8,400 | 6.86 | 29.4 | 516 |
| MM-C2137-240A | 24.0 | 9,400 | 3.92 | 17.7 | 175 |
| MM-C2137-240B | 24.0 | 3,850 | 4.9 | 18.7 | 88 |
| MM-C2137-240C | 24.0 | 7,800 | 8.34 | 53.1 | 293 |
Application fit and cautions
Read out of this record's own numbers.
At its rated point this winding delivers 4.41mN·m at 5,800rpm. That is 2.68 W of mechanical output. Direct drive at that speed suits fans, drums and light continuous rotation; anything that has to hold or position a load needs a reduction, and the gearheads with a reviewed fit are listed above.
Documents, models and next steps
Free and ungated
This specification record is free to read, index and quote, with no form in front of it. You should not have to trade personal data for enough information to reject a product.
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-C2137-120A, revision A, verified by Micro Motion application engineering on 2026-08-18. Catalog 2026-08-18.public.1.