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Racing Crankshaft Components Specification Example for Delivery Vans: Premium Line

Source:Turbocharged Engine / Time:2026-09-18

Racing Crankshaft Components Specification Example for Delivery Vans: 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 delivery vans is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually inconsistent hardness between lots.

Racing Crankshaft Components

Example specification

ItemRacing Crankshaft Components
ApplicationDelivery Vans
VersionPremium Line
Base materialKevlar Composite
Controlled dimensions5 key dimensions, recorded per lot
Tolerance band±0.05 mm
Finishas machined
MOQ500 pieces per specification
Sampling10 working days, 3 days per revision
ComplianceE-mark

How the example is built up

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

  • sintering
  • cold forging
  • electroplating
  • ultrasonic cleaning
  • laser cutting
  • precision stamping

Where this example applies

Programmes that run premium line most often specify this build for delivery vans. Related applications include municipal fleets, city buses, light trucks, off-road bikes, rental motorcycles.

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

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 pieces per line.

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.

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.

What is the minimum order quantity?

The standard MOQ is 500 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

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

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