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Semi Truck Axle Specification Example for Aftermarket Retail: Touring Version

Source:Heat Rejection Tint / Time:2026-09-18

Semi Truck Axle Specification Example for Aftermarket Retail: Touring Version

This is a worked specification for semi truck axle in a touring 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 touring version version exists because the duty cycle on aftermarket retail 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.

Semi Truck Axle

Example specification

ItemSemi Truck Axle
ApplicationAftermarket Retail
VersionTouring Version
Base materialBrass
Controlled dimensions5 key dimensions, recorded per lot
Tolerance band±0.05 mm
Finishas machined
MOQ200 pieces per specification
Sampling14 working days, 5 days per revision
ComplianceSAE J431

How the example is built up

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

Semi Truck Axle example

Processes involved

  • precision stamping
  • rubber vulcanisation
  • assembly line testing
  • laser cutting
  • gravity casting
  • anodising

Where this example applies

Programmes that run touring version most often specify this build for aftermarket retail. Related applications include fleet maintenance, emergency vehicles, boat trailers, export programmes, delivery vans.

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

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the SAE J431-compliant build instead of a fresh interpretation.

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 200 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 200 pieces per line.

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

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