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Industrial Timing Pulley Specification Example for Construction Equipment: Folding Type

Source:Ball Auto Bearing / Time:2026-09-18

Industrial Timing Pulley Specification Example for Construction Equipment: Folding Type

This is a worked specification for industrial timing pulley in a folding type 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 folding type version exists because the duty cycle on construction equipment is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a fitment that looked right on paper and failed on the bench.

Industrial Timing Pulley

Example specification

ItemIndustrial Timing Pulley
ApplicationConstruction Equipment
VersionFolding Type
Base materialCarbon Fibre Composite
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.2 mm
Finishanodised
MOQ200 pieces per specification
Sampling10 working days, 5 days per revision
ComplianceDOT

How the example is built up

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

Industrial Timing Pulley example

Processes involved

  • shot blasting
  • surface grinding
  • ultrasonic cleaning
  • CNC machining
  • sintering
  • laser cutting

Where this example applies

Programmes that run folding type most often specify this build for construction equipment. Related applications include fleet maintenance, boat trailers, dealership service, export programmes, emergency vehicles.

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

Do you handle mixed containers?

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

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 testing is included?

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

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.

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

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