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Steel Wheel Hub Specification Example for Utility Trailers: Budget Line

Source:Onboard Diagnostic Tools / Time:2026-09-18

Steel Wheel Hub Specification Example for Utility Trailers: Budget Line

This is a worked specification for steel wheel hub in a budget line 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 budget line version exists because the duty cycle on utility trailers is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a specification nobody had written down.

Steel Wheel Hub

Example specification

ItemSteel Wheel Hub
ApplicationUtility Trailers
VersionBudget Line
Base materialMagnesium Alloy
Controlled dimensions3 key dimensions, recorded per lot
Tolerance band±0.1 mm
Finishanodised
MOQ3,000 pieces per specification
Sampling7 working days, 3 days per revision
ComplianceREACH

How the example is built up

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

Steel Wheel Hub example

Processes involved

  • surface grinding
  • sintering
  • anodising
  • gravity casting
  • shot blasting
  • electroplating

Where this example applies

Programmes that run budget line most often specify this build for utility trailers. Related applications include three-wheelers, light trucks, boat trailers, dealership service, courier fleets.

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 3000 pieces per line.

What testing is included?

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

Can you match an existing sample?

Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.

How long does sampling take?

Samples leave the factory in 7 working days, and each revision round adds about 3 days once you have seen the first piece.

Send the specification you are working to and we will confirm what we can match, what we would change and why.

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