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Case Study: Timing Belt Supply for a bus operator in North Africa

Source:Case / Time:2026-09-18

Timing Belt for A bus operator in North Africa

A bus operator came to us with a timing belt programme for North Africa. The brief was ordinary and unforgiving at the same time: a fixed launch window, a landed cost that had to survive freight and duty, and a part that had to match an existing sample. This case records what was specified, what went wrong in sampling and how the bulk order landed.

The starting point

  • A specification nobody had written down
  • A fitment that looked right on paper and failed on the bench
  • A supplier who changed material without saying so

Timing Belt case study

What was specified

PartTiming Belt
ClientA bus operator
MarketNorth Africa
Volume50,000 pieces across 4 specifications
Base materialBronze
Sampling rounds2
Delivery window10 weeks from PO to ex-factory
ComplianceIATF 16949

How it was resolved

  1. The specification was rebuilt around Bronze and the tolerance locked before bulk.
  2. A pre-production sample was approved and kept as the golden reference.
  3. Production ran with in-line inspection and a mid-run photo report.
  4. Cartons were packed to the client's own barcode and ratio specification.
  5. Documentation shipped with the goods instead of after them.

Timing Belt production run

Result

  • 50,000 pieces delivered inside the 10-week window.
  • Unit cost held within 4.5% of the original quotation.
  • Inspection-related rejection stayed under 2.0%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.

Planning something similar?

Ask for the current catalogue and the specification sheet for this line.

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