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AC Fan Motor Specification Example for Long-Haul Trucks: Racing Spec

Source:Car Audio System / Time:2026-09-18

AC Fan Motor Specification Example for Long-Haul Trucks: Racing Spec

This is a worked specification for ac fan motor in a racing spec 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 racing spec version exists because the duty cycle on long-haul trucks is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually documentation that arrived after the container shipped.

AC Fan Motor

Example specification

ItemAC Fan Motor
ApplicationLong-Haul Trucks
VersionRacing Spec
Base materialNeoprene
Controlled dimensions3 key dimensions, recorded per lot
Tolerance band±0.2 mm
Finishpowder coated
MOQ200 pieces per specification
Sampling10 working days, 5 days per revision
ComplianceISO/TS 16949

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Neoprene, 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.

AC Fan Motor example

Processes involved

  • die casting
  • CNC machining
  • assembly line testing
  • injection moulding
  • laser cutting
  • cold forging

Where this example applies

Programmes that run racing spec most often specify this build for long-haul trucks. Related applications include aftermarket retail, city buses, boat trailers, racing teams, three-wheelers.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 1.5 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 200 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.

How long does sampling take?

Samples leave the factory in 10 working days, and each revision round adds about 5 days once you have seen the first piece.

What testing is included?

Standard lots ship with dimensional and hardness reports. ISO/TS 16949 documentation is issued with the shipment when your market requires it.

Share a sample or a drawing and we will quote against a written specification, not against a photograph.

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