Stator and rotor kit platform for compact direct-drive systems with flexible OEM integration.
Integration baselines for engineering review before sample freeze.
| Parameter | Baseline | Integration note |
|---|---|---|
| Stator OD | 60 / 90 / 130 mm | Select OD by joint envelope and mounting wall thickness. |
| Rotor ID | 34 / 52 / 78 mm | Reserve center pass-through for cable and harness routing. |
| Stack Height | 20 / 30 / 40 mm | Short stack for dynamic response, long stack for torque margin. |
| Reference Concentricity | <= 0.02 mm | Apply on customer housing datum before pilot build release. |
| Interface | Pins | Signal | Integration spec |
|---|---|---|---|
| Phase Leads | U / V / W | 3-phase power | 22 AWG PTFE, 300V insulation class. |
| Hall Sensor Header | A / B / Z / 5V / GND / Shield | Commutation + index | JST-GH 6P, 5V logic reference. |
| Thermal Monitor | T+ / T- | PTC 1K | Use with drive-side over-temperature threshold. |
| Artifact | Test condition | Output |
|---|---|---|
| Torque-Speed Curve (24V) | 25C ambient, natural convection, W2 winding | Continuous and 10-second peak working zones. |
| Torque-Speed Curve (48V) | 25C ambient, natural convection, W2 winding | Speed margin and current limit crossover points. |
| Back-EMF and phase resistance | No-load waveform + static electrical check | Controller sizing and loop tuning baseline. |
Use these files for preselection. Final CAD and curve packages are released by project revision.
| Asset | Format | Status | Scope | Action |
|---|---|---|---|---|
| CAD Delivery Manifest | TXT | request-gated | Controlled STEP/IGES/Parasolid package scope and buyer inputs. | Download |
| Torque-Speed Curve Preview | SVG | sample-baseline | 24V/48V continuous and peak working-zone preview. | Download |
| Torque-Speed Data Baseline | CSV | sample-baseline | Sample 24V/48V curve data points for first-round sizing. | Download |
For a frameless kit, stator OD, rotor ID, stack height, retention method, and cable exit direction decide whether the motor can enter the design at all. Treat the CAD review as the first gate, then compare torque-speed data.
The same winding can behave differently in an aluminum joint housing, a thin stainless frame, or a sealed polymer module. Ask for assumptions behind continuous torque: ambient temperature, mounting surface, duty cycle, and thermal sensor strategy.
Bus voltage, current limit, PWM strategy, and feedback choice affect usable speed margin. A practical shortlist should compare Kt, Ke, resistance, inductance, and torque-speed envelope under the buyer's actual drive constraints.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Stator OD / Rotor ID / Stack | Project-defined multi-size combinations | Directly determines fit, cable pass-through, and torque headroom. |
| Continuous / Peak Torque | Defined by winding and thermal boundary | Separates short-term boost claims from sustainable output. |
| Torque-Speed Envelope | Mapped by bus voltage and control strategy | Prevents late-stage redesign caused by unrealistic duty assumptions. |
Confirm OD/ID/stack, mounting datum, rotor attachment concept, wire routing, and keep-out zones before sample build. Record the drawing revision used for quotation and sample acceptance.
Run a first review using continuous torque at speed, target ambient, expected duty cycle, and available heat sink mass. Use this gate to reject models that only pass by peak torque.
Define Back-EMF waveform, phase resistance, insulation, no-load current, and dimensional checks before releasing the sample PO so the buyer and factory use the same pass/fail evidence.
| Request 2D/3D CAD and a drawing revision log | A useful package should identify controlled dimensions, interface datum, tolerance assumptions, and whether the model is for layout only or sample-release use. |
| Request torque-speed data at the intended bus voltage | A 48 V curve does not automatically prove 24 V performance. Ask for the voltage, current limit, thermal boundary, and peak-duration assumption behind every curve. |
| Request outgoing inspection fields before repeat orders | For repeat supply, ask which measurements are retained by lot: Back-EMF, phase resistance, insulation, dimensions, appearance, and packaging checks. |
Performance review is based on project-matched operating conditions, with explicit continuous zone and short-duration peak zone boundaries. Validation context typically includes bus voltage, ambient condition, thermal limits, and duty cycle so engineering teams can compare like-for-like.
Send your packaging envelope and target torque-speed points, and we will route CAD/datasheet support through [email protected] or WhatsApp +86 18857971991.
Yes. We support winding customization based on voltage, speed, and thermal constraints.
Yes. Share your application context and we can support CAD and integration review.
Email RFQ
Use email for formal RFQ details, drawings, and specification files.
+86 18857971991
Use WhatsApp for quick pre-RFQ clarification and response.
