Large-aperture frameless-servo configurations designed for cable routing, optics channels, and compact integration.
Integration baselines for engineering review before sample freeze.
| Parameter | Baseline | Integration note |
|---|---|---|
| Stator OD | 70 / 110 / 160 mm | OD selection balances aperture demand and torque density. |
| Rotor ID | 40 / 72 / 108 mm | Large ID reserved for optics, cable bundle, or pneumatic routing. |
| Stack Height | 18 / 30 / 42 mm | Select by inertia target and available axial space. |
| Center routing clearance | >= 2.0 mm radial margin | Keep routing margin after connector and bend-radius check. |
| Interface | Pins | Signal | Integration spec |
|---|---|---|---|
| Phase Leads | U / V / W | 3-phase power | 22 AWG or 20 AWG by current class. |
| Feedback Header | A / B / Z / 5V / GND / Shield | Commutation + index | Shield tie to housing side only. |
| Temperature Pair | T+ / T- | PTC 1K | Optional dual-sensor mapping for critical duty. |
| Artifact | Test condition | Output |
|---|---|---|
| Torque-Speed Curve (24V/48V) | Project-selected winding and aperture class | Continuous/peak boundaries by voltage class. |
| Inertia and response reference | Rotor set only, no external load | Preliminary loop tuning and settle-time estimate inputs. |
| Thermal rise trend | Nominal continuous duty in controlled fixture | Heat path assumptions for customer housing design. |
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 aperture-focused CAD package scope and buyer inputs. | Download |
| Torque-Speed Curve Preview | SVG | sample-baseline | 24V/48V aperture-class continuous and peak preview. | Download |
| Torque-Speed Data Baseline | CSV | sample-baseline | Sample 24V/48V aperture-class curve data points. | Download |
The required center opening must include cable bundle, connector bend radius, optical path, shaft, bearing, encoder, and assembly clearance. A motor ID that looks sufficient can still fail after routing is modeled.
Large aperture designs can increase rotor inertia. Buyers should compare inertia against payload inertia and controller bandwidth before assuming a hollow-shaft option will settle quickly.
Cable exit direction and connector space often create late interference. Treat routing as a CAD gate before sample release, especially for gimbals and compact medical/lab modules.
| Metric | Typical Range | Why It Matters |
|---|---|---|
| Center Aperture Capacity | Project-specific ID requirement | Directly affects routing feasibility and modular architecture. |
| Axial Length | Short-stack to long-stack options | Controls compactness and package-level integration freedom. |
| Rotor Inertia | Matched to dynamic response target | Influences settling time and servo response behavior. |
Model the cable path, center pass-through, bearing stack, feedback package, and service loop clearance before confirming motor ID.
Review motor inertia, load inertia, target response, and acceptable settling behavior as a combined control problem, not as separate catalog lines.
Confirm whether the stator, rotor, encoder, and cable bundle can be installed and serviced without damaging magnets, wires, or feedback alignment.
| Aperture-focused CAD package | Ask for CAD that clearly shows center ID, axial stack, cable exit, mounting references, and any keep-out notes used by the factory. |
| Electrical and thermal assumptions | Request winding constants, target voltage, continuous-duty assumption, and thermal path notes for the hollow-shaft variant under review. |
| Prototype acceptance checklist | Include aperture clearance, no-rub rotation, wiring integrity, Back-EMF, insulation, and runout-sensitive assembly checks if relevant. |
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 project-specific connector, cable length, and exit direction requirements.
Yes. The platform is commonly evaluated for direct-drive precision motion where smoothness and compactness are required.
Email RFQ
Use email for formal RFQ details, drawings, and specification files.
+86 18857971991
Use WhatsApp for quick pre-RFQ clarification and response.
