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AC Fan Motor Specification Example for Assembly Programmes: Load Rated Version

Source:Ball Auto Bearing / Time:2026-09-18

AC Fan Motor Specification Example for Assembly Programmes: Load Rated Version

This is a worked specification for ac fan motor in a load rated version 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 load rated version version exists because the duty cycle on assembly programmes is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually packing that arrived crushed at the port.

AC Fan Motor

Example specification

ItemAC Fan Motor
ApplicationAssembly Programmes
VersionLoad Rated Version
Base materialPowder Coated Steel
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishanodised
MOQ3,000 pieces per specification
Sampling10 working days, 3 days per revision
ComplianceISO 9001

How the example is built up

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

  • injection moulding
  • rubber vulcanisation
  • gravity casting
  • sintering
  • cold forging
  • precision stamping

Where this example applies

Programmes that run load rated version most often specify this build for assembly programmes. Related applications include municipal fleets, light trucks, boat trailers, racing teams, scooter fleets.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 2.5 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

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the ISO 9001-compliant build instead of a fresh interpretation.

How long does sampling take?

Samples leave the factory in 10 working days, and each revision round adds about 3 days once you have seen the first piece.

What happens if a lot fails inspection?

The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.

What testing is included?

Standard lots ship with dimensional and hardness reports. ISO 9001 documentation is issued with the shipment when your market requires it.

Ask for the current catalogue and the specification sheet for this line.

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