Integration guidance for stator mounting, rotor mounting, air gap control, axial clamping, and safe handling of exposed permanent magnets.
Use this resource as an engineering intake page, not as a catalog shortcut. The goal is to make the supplier response specific enough for model selection, sample planning, and internal approval.
These inputs define whether the topic is only a buying question or a real design constraint. Mark unknown values as TBD instead of omitting them, so engineering can separate fixed constraints from open tradeoffs.
The strongest use of this page is to align mechanical, electrical, procurement, and quality teams before the first RFQ email. That alignment reduces quote loops and prevents sample parts from being judged against requirements that were never sent to the supplier.
A useful frameless motor RFQ should let the supplier evaluate geometry, torque-speed duty, electrical limits, thermal assumptions, and commercial timing together. Sending only a target torque or a reference model usually leads to generic answers.
| Topic | Typical Scope | Why It Matters |
|---|---|---|
| Air gap control | Defined by motor design and housing tolerance | Protects performance and prevents rotor/stator contact. |
Use this section to decide what must be checked before samples, before pilot build, and before repeat orders. The right control is not always a more expensive motor; often it is a clearer drawing, test basis, thermal assumption, or acceptance record.
Before treating any resource checklist as complete, convert it into a sample approval plan. A buyer-side handoff should state what is being approved, who owns each check, and which result would trigger a redesign instead of a purchase order.
| Gate | Buyer Check | Supplier Input |
|---|---|---|
| Fit check | Envelope, air gap, lead exit, and mounting interface | Drawing, CAD, and configuration notes |
| Electrical startup | Resistance, back EMF, insulation, drive compatibility | Measured values tied to the quoted winding |
| Duty validation | Thermal rise, motion profile, and operating limit | Test basis or agreed validation method |
| Production release | Forecast, packaging, records, and revision control | Outgoing checkpoints and delivery plan |
Inquiry Email
Include target torque/speed, quantity, and delivery location.