Precision-Engineered
Mechanical Pins & Bushings
Manufactured to micron-level accuracy — engineered to minimize downtime, extend component life, and keep heavy machinery in service where it belongs: on site.
- ±5μm
- Tolerances
- 24/7
- Breakdown Response
- 15+
- Years Experience
Trusted by industry leaders
Why Cobwill
Built to survive the job site.
Three commitments we apply to every component that leaves our shop floor.
Custom Tolerances
Bespoke pins and bushings machined to your exact drawing — down to ±5μm on critical diameters.
Hardened Elements
Case hardening, induction hardening and nitriding for extended service life under shock loads.
Material Versatility
4140, 4340, EN36, stainless, phosphor bronze, brass and self-lubricating alloys — one supplier.
Capabilities & Coverage
A full machine shop, dedicated to a single family of parts.
We don't dabble. Pins and bushings are what we do — and every piece of equipment on the shop floor is here for that reason.
Industries Served
- 01ID / OD Cylindrical Grinding
- 02CNC Turning & Milling
- 03Case Hardening & Tempering
- 04Keyway & Cross-Hole Machining
- 05Surface Finishing to Ra 0.4
- 06Reverse Engineering from Samples
Frequently Asked
Answers before you ask.
No Drawing? No Problem.
Detailed drawings, drafted in-house.
Missing OEM prints or working from a worn sample? Our drafting service turns physical parts and rough sketches into production-ready drawings — so we can quote accurately and machine a perfect replacement.
Request drafting service- 01
Measure & Inspect
Send us the worn part, a rough sketch, or an OEM number — we take precise measurements in-house.
- 02
Detailed Drawing
Our team drafts a fully dimensioned production drawing with materials, tolerances and finishes specified.
- 03
Approve & Manufacture
You review and sign off the drawing before we cut a single chip — no surprises on the finished part.
Talk to an Engineer
Send drawings.
Get a real quote back.
No sales funnels. Your enquiry lands in our workshop inbox and a machinist responds — usually within a few hours.