Robot joints and actuation
quasi-direct-drive actuator: 7.5 N·m rated / 22 N·m peak at 8:1, 320 rpm no-load.
Engineering inference
SteadyWin
SteadyWin GIM8108-8 Joint Motor
SteadyWin GIM8108-8 is a Ø92 mm brushless joint motor with an 8:1 steel planetary reducer. With the GDS68 driver at 48 V (12–56 V) it gives 7.5 N·m rated and 22 N·m stall torque, 110 rpm rated and 320 rpm max, 336 W, 1 N·m/A and 15 arcmin backlash. It has a 16-bit encoder plus an optional second encoder, CAN, IP54, and weighs 396 g at Ø92 × 55 mm.
GIM8108-8Development boardPrice$85.00www.roboticscenter.ai · preorder
Buy at www.roboticscenter.ai Overview
Motor essentials
Facts about the complete product. Unknown values remain open design questions.
- Rated voltage
- 48 V
- No-load speed
- 320 RPM
- Gear reduction
- 8:1
- Encoder
- 16-bit onboard + optional second encoder
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
No-load speed, rated performance and stall limits describe different operating points. A stall specification is not a continuous operating rating.
3D model & CAD
3D model & CAD files
Generated from the datasheet's dimensioned drawing and measured against it. Download the STEP to check fit in your own enclosure.
- Envelope (L × W × H)
- 92 × 92 × 55 mm
- Verification
- generated
- Envelope complete
- Yes
Torque & control
Torque, speed and control
What the joint can deliver and how the controller talks to it.
- Type
- QDD
- Gearbox
- planetary 8:1
- Rated / peak torque
- 7.5 / 22 N·m
- No-load speed
- 320 rpm
- Encoder
- 16-bit onboard + optional second encoder
- Control
- CAN
| Connector | Type |
|---|---|
| power_can | XT30 (2+2) power + CAN connector on the GDS68 (SDC104) driver |
Rated torque is continuous; peak torque is short-duration. Values with two figures (e.g. 24/48 V) are per supply voltage.
Specifications
Motor performance
No-load, rated-load and stall figures retain their separate test conditions.
- Rated voltage
- 48 V
- No-load speed
- 320 RPM
- Continuous rated torque
- 7.5 N·m
- Rated-load speed
- 110 RPM
- Rated current
- 7 A
Stall torque and current are not continuous ratings. Check the duty cycle and starting load when choosing the driver and power supply.
Thermal limits by level
Product operating conditions, chip ambient ratings, package case limits and junction maxima remain separate.
Motor body
- Product operating range
- -20 to 80 °C
Mechanical dimensions
Reported product dimensions may exclude protruding components. Unknown height does not establish a complete clearance envelope.
- Length
- 92 mm
- Width
- 92 mm
- Reported height / thickness
- 55 mm
Attached generated geometry is an approximate envelope. A generated outline does not establish an electrically verified PCB footprint.
Board connectors
| ID / type | Pins | Pitch | Notes |
|---|---|---|---|
| power_canXT30 (2+2) power + CAN connector on the GDS68 (SDC104) driver | 4 | Unknown | — |
Complete structured record
Every available field, including details beyond the summaries. Null means the value has not been established.
Sourcing & files
Supplier offers
US / USD is the target market. Observed price and stock are separate from a delivery quote.
www.roboticscenter.ai
US · USD
$85.00Minimum quantity unknown
- Observed stock
- preorder
- Checked
- Oct 18, 2026, 03:19 AM UTC
- Delivery estimate
- Not quoted
This observation is stale or has no verified check time. Recheck with the supplier.
Visit supplier (opens in a new tab)Delivery depends on quantity, postal code and shipping method. A dispatch statement such as “ship today” is not an arrival estimate.
Design files and references
Each source keeps its own verification status. Confirm the part revision and file contents before using it in a design.
Datasheet (opens in a new tab)
Manufacturer reference
SteadyWin GIM8108-8 — product photo (Robotics Center) (opens in a new tab)
Unverified reference
inspected: wide black Ø92 pancake body with bolt bosses around the rim, silver output flange with dowel pins and centre bore, leads exiting the side. Retailer image → unverified.
STEP (generated from datasheet drawing) — link unavailable
Generated asset
cad_check passed
Generated envelope geometry may also exist for this record. It does not replace manufacturer CAD or a verified electrical land pattern.
Source evidence
Document provenance, retrieval dates and the field groups supported by each source.
Supports: spec.constraints.electrical.supply_voltage_nominal_v, spec.constraints.thermal.operating_temp_max_c, spec.constraints.thermal.operating_temp_min_c, spec.geometry.body_diameter_mm, spec.geometry.body_length_mm, spec.geometry.cad.bbox.height_mm, spec.geometry.cad.bbox.length_mm, spec.geometry.cad.bbox.width_mm, spec.geometry.cad.envelope_complete, spec.geometry.cad.mesh_path, spec.geometry.cad.step_path, spec.geometry.cad.verification, spec.geometry.dimensions.height_mm, spec.geometry.dimensions.length_mm, spec.geometry.dimensions.width_mm, spec.geometry.other.weight_g, spec.provides.actuator_type, spec.provides.backlash_deg, spec.provides.control_interface, spec.provides.encoder, spec.provides.encoder_bits, spec.provides.features, spec.provides.gear_ratio, spec.provides.gear_type, spec.provides.integrated_driver, spec.provides.kt_nm_per_a, spec.provides.kv_rpm_per_v, spec.provides.motor_type, spec.provides.no_load_speed_rpm, spec.provides.other.pole_pairs, spec.provides.other.rated_power_w, spec.provides.peak_torque_nm, spec.provides.rated_speed_rpm, spec.provides.rated_torque_nm, spec.usage.connectors, spec.usage.pinout_complete, spec.usage.requirements.other.peak_current_a, spec.usage.requirements.rated_current_a, spec.usage.requirements.rated_voltage_v
sha256 5627bfae000d32eb91e11022703308db022db79ae520027daf5d977e3ab9c80d
Supports: offers
FAQ
SteadyWin GIM8108-8 Joint Motor questions
How much does the SteadyWin GIM8108-8 Joint Motor cost?
From $85 at www.roboticscenter.ai. Prices are observed unit prices before tax and shipping.
What are the SteadyWin GIM8108-8 Joint Motor dimensions?
92 × 92 × 55 mm. A STEP model is available for enclosure fit checks.
Where does this SteadyWin GIM8108-8 Joint Motor data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.