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Racing Crankshaft Components Specification Example for Assembly Programmes: Premium Line

Source:Bias Tire / Time:2026-09-18

Racing Crankshaft Components Specification Example for Assembly Programmes: Premium Line

This is a worked specification for racing crankshaft components in a premium 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 premium line 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 a specification nobody had written down.

Racing Crankshaft Components

Example specification

ItemRacing Crankshaft Components
ApplicationAssembly Programmes
VersionPremium Line
Base materialPowder Coated Steel
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.2 mm
Finishpowder coated
MOQ2,000 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 — 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.

Racing Crankshaft Components example

Processes involved

  • laser cutting
  • electroplating
  • injection moulding
  • gravity casting
  • sintering
  • anodising

Where this example applies

Programmes that run premium line most often specify this build for assembly programmes. Related applications include municipal fleets, boat trailers, city buses, emergency vehicles, light trucks.

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

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 is the minimum order quantity?

The standard MOQ is 2000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

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.

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.

Tell us the model, the fitment and the quantity and we will hold a production slot for you.

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