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High Efficiency EV Motor Specification Example for Fleet Maintenance: Vented Design

Source:Automotive Piston Pin / Time:2026-09-18

High Efficiency EV Motor Specification Example for Fleet Maintenance: Vented Design

This is a worked specification for high efficiency ev motor in a vented design programme. It is the document we would send a buyer who asks what exactly they are getting: the material, the dimensions that are actually controlled, the finish, and the checks that happen before anything is packed.

The vented design version exists because the duty cycle on fleet maintenance is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually premature wear on the first batch.

High Efficiency EV Motor

Example specification

ItemHigh Efficiency EV Motor
ApplicationFleet Maintenance
VersionVented Design
Base materialNylon 66
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishpainted
MOQ1,000 pieces per specification
Sampling14 working days, 3 days per revision
ComplianceECE R90

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Nylon 66, in this example.
  3. List the dimensions that are actually controlled and the tolerance on each.
  4. Name the finish and what it has to survive.
  5. State the inspection level and who pays when a lot fails.

High Efficiency EV Motor example

Processes involved

  • precision stamping
  • heat treatment
  • shot blasting
  • cold forging
  • CNC machining
  • robot welding

Where this example applies

Programmes that run vented design most often specify this build for fleet maintenance. Related applications include dealership service, passenger cars, long-haul trucks, rental motorcycles, off-road bikes.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 4.0 sampling on the finished lot.
  • Finish inspection under agreed lighting.
  • Carton drop test on the first lot of a new packing specification.

Questions buyers ask

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 1000 pieces per line.

How is packing specified?

Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.

What is the minimum order quantity?

The standard MOQ is 1000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ECE R90-compliant build instead of a fresh interpretation.

Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.

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