Looking for a machined washer no supplier stocks? If your washer needs a non-standard outside diameter, an odd bore, an exact thickness or a material stamping can't reach, it has to be turned to order. That's this service — custom washers machined from solid bar to your numbers, from a single piece.
Machined vs Stamped: Why It Has to Be Turned
Most washers you can buy are stamped — punched from thin sheet in a handful of standard sizes. That's fine until your job falls outside the catalog: a bore between two standard sizes, an outside diameter that has to clear a counterbore, a thickness that sets a precise gap, or a material sheet stock doesn't come in.
A machined (turned) washer is cut from solid bar on a lathe, so none of those limits apply. You get flat, parallel faces, a burr-free edge, controlled tolerances, and any OD/bore/thickness combination you specify. It's stronger than a stamped equivalent and available in grades and thicknesses stamping simply can't produce.
| Stamped washer | Machined / turned washer | |
|---|---|---|
| Sizes | Standard catalog only | Any OD, bore & thickness you specify |
| Thickness control | Sheet gauge, ±0.1 mm+ | Machined to target, ±0.02 mm or tighter |
| Edge & faces | Sheared edge, burr side, slight dish | Flat parallel faces, clean edge, no burr |
| Materials | Limited to sheet stock | Bar in almost any metal or plastic |
| Minimum quantity | Bulk / tooling for specials | 1 piece, no tooling cost |
The 4 Numbers We Need
A washer is defined by a handful of dimensions. Mark these on your sketch (or just type them) and we can quote:
Metric or imperial, both fine. If you only have a worn original, send that instead of numbers — we measure everything from it and restore worn faces to the original design intent. Special features like an offset hole, a chamfer, a tab, a slot or a tapped hole are no problem; note them on the sketch.
Machined Washer Types We Make
Flat & special washers
Plain flat washers in non-standard OD, bore or thickness, plus large-diameter penny/repair washers stamping can't cover.
Shim & setting washers
Machined to a precise thickness to set bearing pre-load, end-float or a specific gap — single or as a graded set.
Thrust washers
Hardened steel, bronze or PTFE-faced thrust washers for rotating loads, turned to size and flatness.
Spherical & conical washers
Self-aligning spherical seats and Belleville-style conical washers to your angle and load.
Tab, slotted & keyed washers
Locking tab washers, C-washers and keyed/tab-in-bore washers milled after turning.
Insulating & sealing washers
Non-conductive plastic washers and bonded/soft-metal sealing washers for electrical or fluid joints.
Machining Capability Range
Typical range for turned washers — outside this envelope, ask and we'll confirm:
| Feature | Typical range | Notes |
|---|---|---|
| Outside diameter | 3 mm – 300 mm | Larger by arrangement; bar or plate stock |
| Bore (inside Ø) | 1 mm – 250 mm | Plain, chamfered, counterbored or tapped |
| Thickness | 0.3 mm – 50 mm | Thin shims ground/lapped if needed |
| Thickness tolerance | ±0.02 mm typical | Tighter on request for shim sets |
| Flatness / parallelism | To drawing | Faced both sides; lapped for critical work |
| Quantity | 1 – 10,000+ | No tooling cost; tiered unit pricing |
Materials & When to Use Them
| Material | Best for | Notes |
|---|---|---|
| Stainless 303 / 304 / 316 | Marine, outdoor, hygienic, corrosion-prone joints | 316 for saltwater/chemical exposure |
| Brass & bronze | Electrical, decorative, low-friction thrust washers | Bronze for bearing/thrust duty |
| Carbon & alloy steel | Load-bearing and thrust washers | Can be hardened, ground or zinc-plated |
| Aluminum 6061 / 7075 | Lightweight and cosmetic washers | Anodize black, silver or color |
| Titanium | Aerospace, motorsport, high strength-to-weight | Grade 5 (Ti-6Al-4V) available |
| Delrin / POM, PEEK, PTFE, nylon | Insulating, low-friction, sealing | Non-conductive; PEEK/PTFE for temperature & chemicals |
Not sure which to pick? Describe what the washer does — the load, the mating faces, the environment — and we'll recommend a material with your quote. Material certification (EN 10204 3.1) is available on request.
Catalog jumps over your size? That's exactly what this service is for. Stock suppliers carry standard increments; we machine to your number — non-standard OD, odd bore, in-between thickness, special material — drawn by you, turned by us, from one piece.
How It Works
Send Your Sketch, Sample or Dimensions
Email a photo of your sketch or the worn washer — or just type OD, bore and thickness — to support@ekinsun.ltd or via the form. Note the material if you know it.
We Redraw & Confirm
Our engineer turns it into a CAD drawing within 24h and confirms any thickness/tolerance question — we never assume a shim tolerance you didn't ask for.
You Approve & We Quote
You approve the drawing; we send a firm price with material options and lead time. Tiered pricing for 1, a few, or a batch — all upfront.
We Turn, Inspect & Ship
Machined on our lathes, faced flat, dimensionally inspected, and shipped worldwide via DHL/FedEx with tracking.
Who Orders Custom Machined Washers
- Machine & equipment rebuilders — thrust and shim washers to reset bearing pre-load and end-float where the original size is long gone.
- Classic vehicle & motorcycle restorers — odd-bore and thick special washers no modern catalog lists; often as replacement parts from a sample.
- Design engineers & OEMs — non-standard washers designed into an assembly, from prototype through production.
- Maintenance & MRO buyers — one-off large-diameter or exotic-material washers to keep installed plant running.
Frequently Asked Questions
Stamped washers are punched from sheet in standard sizes, with a sheared edge and burr side. Machined washers are turned from solid bar to any OD, bore and thickness, with flat parallel faces, no burr and controlled tolerances — stronger and available in materials stamping can't reach.
Yes — that's the core of this service. Send the OD, bore and thickness you actually need (metric or imperial) and we turn it from solid bar. Non-standard bores, oversized ODs and in-between thicknesses are all normal orders.
Yes. Shim and setting washers are machined to a target thickness, typically ±0.02 mm or tighter, with flat parallel faces. Tell us the stack-up you're correcting and we machine to it — or supply a graded set.
Yes, MOQ is 1 piece with no tooling charge. Order one to confirm the fit, then reorder a batch at a lower unit price — we keep your CAD on file.
Stainless (303/304/316), brass and bronze, carbon and alloy steel, aluminum, titanium, and plastics like Delrin/POM, PEEK, PTFE and nylon — including hardened thrust washers and PTFE/bronze low-friction washers.
Yes. Send one sample, or a sketch with OD, bore and thickness marked. We redraw it in CAD for free, confirm every dimension, and machine to it. No CAD file or part number needed.
Quote in 24 hours; typically 5–10 working days machining after drawing approval, plus tracked worldwide shipping. Small batches can often be expedited.
Related: all hand-drawing & sketch machining · spacers & bushings from a sketch · shafts from a sketch · CNC turning · order with no CAD at all · custom fasteners & washers · replacement parts
Get a Free Quote
Send your OD / bore / thickness — or a sketch or sample. We reply within 24 hours.
// Qty & price
1 pc
Sample price
Confirm fit before a run
3–10
Unit price drops
Setup cost shared
10+
Best price
All tiers quoted upfront
- →No distributor — you pay the maker directly
- →CAD saved after first order — reorder anytime at lower unit price
Response within 24h · Drawings kept confidential