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Car Bearing Specification Example for Fleet Maintenance: Heavy Duty

Source:Otr Tire Tools / Time:2026-09-18

Car Bearing Specification Example for Fleet Maintenance: Heavy Duty

This is a worked specification for car bearing in a heavy duty 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 heavy duty version exists because the duty cycle on fleet maintenance 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.

Car Bearing

Example specification

ItemCar Bearing
ApplicationFleet Maintenance
VersionHeavy Duty
Base materialCast Iron
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.2 mm
Finishanodised
MOQ1,000 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 — Cast Iron, 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.

Car Bearing example

Processes involved

  • rubber vulcanisation
  • electroplating
  • surface grinding
  • precision stamping
  • powder coating
  • robot welding

Where this example applies

Programmes that run heavy duty most often specify this build for fleet maintenance. Related applications include export programmes, municipal fleets, delivery vans, assembly programmes, courier 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

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 1000 pieces per line.

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 1000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

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.

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

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