SM-105B-C002¶
Specifications transcribed from the supplied documentation for this exact model and suffix.
Start your integration¶
| Your task | Start here | What to check |
|---|---|---|
| Write control software | Software integration | Interface, application layer, read-first bring-up and validation record |
| Design a bracket or joint | Mechanical integration | Drawings, CAD, datum, output shaft and cable clearance |
| Collect engineering files | Resources and status | Available files and outstanding information |
Key specifications¶
| Parameter | Specification |
|---|---|
| --- | --- |
| Input voltage | 9–24 V |
| Stall torque | 150 kg·cm |
| No-load speed | 0.167 s/60°（60 RPM） |
| Travel / rotation | 360°（0~4096） |
| Control interface | RS-485 |
| Family | SMS |
| Dimensions | 58.5 × 33.5 × 44 mm |
| Weight | 200 ± 3 g |
| Gears | Steel gears |
| Motor | Brushless motor |
| Communication | RS-485 half-duplex asynchronous serial，ID 0–253，38400bps ~ 1Mbps |
| Document revision | A/0（Official page captured 2026-10-02） |
Selection note
Stall torque is a short-duration limit, not continuous operating torque. Confirm power, shared ground, interface and mechanical clearance before enabling torque.
Official model specifications¶
FEETECH official product page · Checked 2026-10-02. The complete model on the page is SM-105B-C002.
| Parameter | Manufacturer specification |
|---|---|
| Model | SM-105B-C002 |
| Storage Temperature Range | -30℃～80℃ |
| Operating Temperature Range | -15℃～60℃ |
| Size | A：58.5mm B：33.5mm C：44mm |
| Weight | 200± 3g |
| Gear type | 钢 Steel |
| Limit angle | No limit |
| Bearing | 滚珠轴承 Ball bearings |
| Horn gear spline | 15T/OD7.6mm |
| Back Lash | ≦0.5° |
| Case | Aluminium |
| Connector wire | 40CM |
| Motor | Brushless Motor |
| Operating Voltage Range | 9V-24V |
| No load speed | 0.167sec/60°(60RPM) |
| Runnig current(at no load) | ≦240mA |
| Peak stall torque | 150kg.cm |
| Rated torque | 50kg.cm |
| Idle Current (at stopped) | 24mA |
| Stall current | 6.3A |
| Command signal | Digital Packet |
| Protocol Type | Half Duplex Asynchronous Serial Communication |
| ID | 0-253 |
| Communication Speed | 38400bps ~ 1Mbps |
| Running degree | 360° (when 0~ 4096) |
| Feedback | Load（负载）, Position（位 置）,Speed（工作速度）, Input Voltage（输入电压），Current（工作 电流）,Temperature（工作温度） |
Attachment checks: PDF content model not verified: SM-105B-C002串型规格书-20250528.pdf
Other files linked by the manufacturer (model applicability unconfirmed):
Resources and document status¶
Local attachments are included in the model package; PDF specifications link to the manufacturer and are not bundled offline. Missing resources are not yet supplied; family guides do not verify model-specific settings.
| Resource | Status / file | Revision |
|---|---|---|
| Model datasheet | Not supplied | — |
| Connector and pinout | Not supplied | — |
| Model memory table / firmware notes | Not supplied | — |
| 2D mounting drawing | drawing.webp | — |
| STEP / 3D model | Not supplied | — |
| Model-tested example | Not supplied | — |
| Raw test data | Not supplied | — |
| Test record and conditions | Not supplied | — |
Package manifest · Request missing resources
For an offline ZIP with both languages and available attachments, see product-package export.
Request resources or report an issue¶
Use your existing FEETECH technical-support contact and include the full label/model suffix, firmware version (if known), and the document revision you are using.
- Software: controller/OS, SDK version or commit, adapter/interface, supply voltage, confirmed ID/baud rate (bus models only), minimal reproduction and logs.
- Mechanics: drawing/CAD revision, marked dimensions, required travel, horn/bracket, load and lever arm, duty cycle, and the point of interference.
- Missing files: name the exact item in the resource table (for example, this model's STEP and a dimensioned mounting drawing).
This package currently provides a specification summary and integration checklists. File availability does not imply that your firmware, load case or assembly has been validated.