
NEMA 17 OEM RFQ Checklist for Global Buyers
A practical RFQ template to reduce back-and-forth and get faster, accurate quotations for NEMA 17 motor sourcing.
Content Integrity Note
- Author: Jimmy Su
- Published: 2026/04/11
- Basis: Factory-side NEMA 17 OEM communication and validation workflows.
- Boundary: Final model and parameter decisions should be validated in your own system tests.
When RFQ details are incomplete, quotation cycles become slow and error-prone. For NEMA 17 projects, buyers can shorten turnaround time by sending a structured requirement package from day one.
Minimum Data Package (MDP) for Fast Quotation
Use this as your baseline before sending RFQ:
| Section | Must Have | Why It Matters |
|---|---|---|
| Electrical | Current/phase, voltage, step angle, torque target | Determines winding and driver compatibility |
| Mechanical | Body length, shaft spec, mounting details | Prevents assembly mismatch and rework |
| Harness | Connector type, pinout, cable length | Avoids field wiring errors |
| Commercial | Sample qty, mass qty, Incoterm, destination | Enables realistic lead time and logistics costing |
| Quality | Key acceptance criteria | Reduces disputes during incoming inspection |
RFQ Completeness Scoring (Internal Procurement Tool)
Use a weighted score before sending to suppliers. Teams that submit at least 85/100 usually get one-round actionable quotations.
| Block | Weight | Pass Rule |
|---|---|---|
| Electrical definition | 25 | Current, voltage, step angle, torque, speed range all present |
| Mechanical definition | 25 | Body length, shaft, mount, clearance constraints all present |
| Harness definition | 15 | Connector family, pinout, cable length, exit direction present |
| Commercial definition | 20 | Sample qty, MP volume, Incoterm, destination, target date present |
| Quality and acceptance | 15 | Inspection plan and critical limits attached |
Core Electrical Requirements
Include these items in your first email:
- Rated current per phase (A)
- Rated voltage (V)
- Step angle (1.8 degree or 0.9 degree)
- Holding torque target (N.m)
- Driver model or microstepping plan
If your team is still selecting a driver, share your controller and power supply limits. That helps avoid recommending a motor that your electronics cannot run safely.
Also include your target speed range and duty cycle. A motor that works at low RPM may fail at your real operating speed without driver and voltage adjustment.
Core Mechanical Requirements
Define mechanical constraints early:
- Body length limit (for example pancake vs long body)
- Shaft diameter and shaft length
- Single-shaft or double-shaft
- Mounting hole/thread requirements
- Connector type and cable length
For retrofits, add photos or drawings of the existing mount area. This prevents mismatches in shaft extension and cable exit direction.
If you use couplers, belts, or lead screws, provide the mating component model. This allows tolerance matching before sample dispatch.
Commercial and Delivery Information
RFQ speed also depends on commercial clarity:
- Sample quantity and target mass-order volume
- Required Incoterm (EXW/FOB/CIF/DDP)
- Destination country
- Target delivery window
- Packaging and labeling requirements
If your procurement process requires PP sample sign-off or staged release, mention it early so production planning can reflect your approval gates.
Common RFQ Gaps That Delay Quotations
- Sending only model keyword without load or speed requirement.
- No shaft or connector detail while asking for custom pricing.
- Asking for lead time without quantity split (sample vs batch).
- Missing destination and trade terms, which blocks logistics estimation.
Recommended Attachment Set
Attach at least one of the following:
- Mechanical drawing or installation interface sketch
- Existing motor label/datasheet (if replacing)
- Driver model and wiring requirement
- Assembly photo showing clearance constraints
Attachment Quality Gate
| Attachment | Minimum Quality | Typical Rejection Reason |
|---|---|---|
| 2D drawing | Dimensioned in mm, clear datum | No tolerance or no revision number |
| Assembly photos | Front/side/connector close-up | Only one angle, unclear shaft direction |
| Driver information | Full model and current setting | Driver brand only, no model code |
| Volume forecast | Monthly/quarterly range | One-off quantity without MP estimate |
Recommended RFQ Email Structure
Use this format to improve first-pass quotation quality:
- Application and machine type
- Electrical specifications
- Mechanical specifications
- Quantity and timeline
- Destination and trade terms
You can send your RFQ to [email protected] with subject line:
NEMA 17 OEM RFQ - [Your Company Name]
Ready-to-Send RFQ Template
Application:
Required torque/speed:
Current and voltage:
Step angle:
Motor dimensions and shaft details:
Connector/cable requirements:
Sample quantity:
Mass-order forecast:
Incoterm and destination:
Target delivery date:
Special QC/packaging requirements:Sample Acceptance Record (Recommended)
Freeze this table before sample shipment so both teams inspect against the same rule set.
| Item | Method | Suggested Limit |
|---|---|---|
| Shaft diameter | Caliper/micrometer | Drawing nominal +/- tolerance |
| Shaft runout | Dial indicator | <= 0.05 mm (or per drawing) |
| Coil resistance balance | DMM at 25 C | Phase-to-phase delta <= 5% |
| No-load current consistency | Driver bench test | Within agreed process window |
| Surface and label check | Visual + checklist | No burr, no rust, readable trace label |
Final Note
A complete RFQ is the fastest path to a reliable quote. For custom projects, provide both your preferred target and acceptable tolerance range so engineering can return feasible options in one round.
Related Tool
When your RFQ includes a 0.25 N·m target, use the 0.25 N·m NEMA 17 fit checker and decision report to pre-screen torque margin before sending supplier questions. If your RFQ depends on 0.9° positioning architecture, run the 0.9 degree NEMA 17 pulse and resolution checker to confirm controller throughput and microstep boundaries before sample approval.
Download Templates
Author

Jimmy Su
Export sales and application advisor for NEMA17Motor, focusing on OEM communication, technical alignment, and production handoff.
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