RFQ Preparation Checklist
- Continuous and peak torque limits
- Space constraints (diameter/length) and weight limits
- Feedback requirement (encoder resolution) and operating voltage
- Radial and axial load applied to the output shaft
High-torque, responsive micro BLDC and gear motor sourcing for robotic joints, grippers, exoskeletons, and automated mechanisms.

Best-fit buyer
For robotics engineers who need compact, lightweight actuation with predictable positioning and torque control.
Validate Before Product Integration
Application Inputs That Change Selection
| Stage | Buyer Input | Factory / QC Checkpoint | Decision Output |
|---|---|---|---|
| RFQ feasibility review | Continuous and peak torque limits; Space constraints (diameter/length) and weight limits | Match gear ratio, continuous torque, and peak torque limits | Feasibility notes, missing parameters, and sample direction. |
| Sample definition and validation | Feedback requirement (encoder resolution) and operating voltage; Radial and axial load applied to the output shaft | Power-to-weight ratio: Optimized for mobile/wearable robotics | Controlled sample scope with measurable acceptance criteria. |
| Pilot lot and repeat production | Pilot quantity, annual forecast, revision baseline, and destination | Peak torque damages gearbox during sudden stops: Review dynamic braking scenarios and specify appropriate safety factors for gear materials. | Pilot records tied to rms torque and outgoing inspection. |
| Evaluation Metric | Typical Range | Buyer Relevance |
|---|---|---|
| Power-to-weight ratio | Optimized for mobile/wearable robotics | Reduces battery drain and physical burden in portable robotic systems. |
| RMS torque | Calculated from acceleration, holding, dwell, and duty-cycle profile | RMS torque prevents peak-load sizing from overheating the motor in real motion cycles. |
| Backlash and feedback | Gearhead backlash, encoder resolution, Hall signals, and controller loop reviewed together | Positioning quality depends on the whole actuation stack, not only motor torque. |

We can review integrated micro BLDC assemblies with gearheads and encoder feedback when the package, ratio, resolution, load cycle, and validation scope are defined.
Start with joint speed, load, duty cycle, gear ratio, backlash, feedback, and thermal limits, then translate the requirement back to motor torque and speed.
Inquiry Email
Include motor type, OD, voltage, speed, load, quantity, and destination.