When a Machine Goes Down, the Clock Is Running
A single failed component — a sheared shaft, a worn bushing, a stripped gear — can stop a whole production line. And too often the OEM makes it worse: the part is back-ordered for weeks, sold only in large minimum quantities, priced as a captive spare, or no longer supplied at all. Meanwhile the machine sits idle and the losses add up by the hour.
EKINSUN exists for exactly that gap. We machine custom replacement parts to OEM specification or better, one piece at a time, from whatever you have — the worn part, an old drawing, or just photos and measurements. No CAD file, no minimum batch, and a quote in 24 hours so you can plan the repair fast.
Machine Parts We Remake
Each part below has its own page with specs, materials and how to order — most can be reproduced from a worn sample with no drawing:
Shafts, Gears & Drive Parts
Housings, Bodies & Mounts
Don't see your part? We make far more than we can list — tell us what failed and we'll quote a replacement.
Made to OEM Spec — or Better
A replacement only helps if it drops straight in. We put the precision where the part needs it and inspect what we ship:
| Feature | How we hold it |
|---|---|
| Bearing journals, bores, mating faces | Tight, typically ±0.02–0.05 mm, to match the assembly |
| Threads & splines | Gauged to the matched standard (metric / UNC / UNF) |
| Gear tooth form | Reproduced to module/pitch and pressure angle of the original |
| General dimensions | ±0.05–0.1 mm, inspected against the model and your sample |
Where the original failed early, a remake is also a chance to improve it — a tougher steel, a hardened wear surface, a bronze bushing instead of plastic, or a larger fillet where it cracked.
No Drawing? We Reverse Engineer It
Most machine-part jobs arrive without a drawing — the documentation is long gone and all you have is the failed component. That's our normal starting point.
Send the part or photos
Mail the worn or broken part, or send photos with a known dimension. We confirm what's usable first.
Measure & recover the original size
CMM and gauges capture the features; we restore worn dimensions to the original design intent, not the worn state. How reverse engineering works →
Confirm CAD, then machine
You approve the rebuilt drawing (free), then we machine and inspect. Reproducing from a sample →
Part discontinued or the maker gone? That's a slightly different problem — see obsolete & discontinued parts, where we reconstruct from the mating parts even when no original survives.
Materials
Metal
Steel, stainless (304/316), aluminium, brass, bronze, tool steel — turned and milled to tight tolerance, heat-treated where needed.
6061 →304 →Plastic
Delrin/POM, nylon, PTFE, PEEK — machined for one-offs, cast for small batches of wear parts and guides.
Vacuum casting →Wear parts
Bushings, bearings, rollers and guides in bronze or engineering plastic — often upgraded over the original for longer life.
Bushings →What to Send Us
- The worn or broken part, or photos from several angles (a ruler or caliper in shot helps)
- One known reference dimension — a diameter, a length, a bore or thread size
- What the part does and what it mates with (bearing size, shaft diameter, housing it sits in)
- Any old drawing, manual page or OEM number — even a partial one
- Quantity — one to get running, or a few spares
- Delivery country (we ship worldwide)
No CAD, no problem. Rebuilding the drawing is our job — free, and confirmed with you before anything is cut. See how to order with no CAD file.
A note on branded parts. We make a compatible replacement to the original's form, fit and function from what you supply. We don't sell branded original products or imply affiliation with the original manufacturer.
Frequently Asked Questions
Yes. Send the worn or broken part, or photos with a few measurements. We measure it on a CMM, rebuild the CAD for free, confirm it, then machine the replacement. No OEM drawing, part number or CAD file needed.
Yes, a common reason customers come to us. No setup fee on machined parts, so a single replacement is welcome — often faster and cheaper than the OEM's minimum batch. We can also make a few spares from the same CAD.
Rotating and drive parts (shafts, couplings, gears, pulleys, sprockets, cams), bushings and bearing parts, brackets, spacers and mounts, and housings, flanges and manifold bodies — in steel, stainless, aluminium, brass, bronze or engineering plastics.
Yes. We hold fitting features — journals, bores, threads, mating faces — tight (typically ±0.02–0.05 mm) and inspect the finished part against the model and your original, so it drops straight into the assembly.
It depends on the failure. Single-surface wear can sometimes be sleeved and re-machined; cracked, badly worn or critical parts are better remade new. With no tooling cost on a single machined part, a fresh part is often close in price and lasts longer — we advise honestly.
We make a compatible replacement to the original's form, fit and function from the sample, drawing or photos you supply. We don't sell branded originals or imply affiliation with the original manufacturer.
A quote within 24 hours of us seeing the part or photos. After approval a single machined replacement is usually days, not weeks — far quicker than a back-ordered or discontinued OEM part. CAD reconstruction is free.
Get a Replacement Part Quoted
Worn part, drawing or photo — all accepted. Engineers reply in 24h.