Precision Washers & Spacers
Flat, conical and shim washers from 0.05 mm, stamped or fine-blanked with lapped flatness.
Shims and spacers where thickness is the function. Stamped from 0.05 mm up or fine-blanked for thicker parts, with the thickness measured across the face rather than at one point.
How we make it: Swiss CNC machining service →
2–4 weeks
500 pieces
ISO 9001:2015
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Thickness range | 0.05–6.0 | mm |
| Thickness tolerance | ±0.01 | mm |
| Flatness | 0.02 | mm |
| OD tolerance | ±0.1 | mm |
| Burr height | ≤0.05 | mm |
| Shim kits | Multi-thickness | available |
Available Materials
- Spring steel 1.4310
- Stainless 304 / 316
- Brass C260
- Aluminium 5052
- Bronze C521
- Mylar / PET shim stock
Typical Applications
- Bearing preload shims
- Gear backlash adjustment
- Wear plates
- Electrical isolation spacers
- Alignment shims
Surface Finishes
- As-stamped
- Deburred
- Passivate
- Zinc plating
- Black oxide
- Lapped
Industries Served
- Industrial Equipment
- Automotive & EV
- Aerospace
- Energy & Oil & Gas
- Instrumentation
What drives the price of this part
Derived from the callouts on this page. Where a driver is not on the drawing, it is not on this list.
- Tolerance
- Thickness tolerance at ±0.01 mm is the tightest callout this family carries. Tightening a callout is a process decision, not a machining decision: below the standard ±0.005 mm the work moves to grinding or jig boring, and the price moves with it.
- Part size
- Thickness range at 0.05–6.0 mm decides which machine the part lands on and how many setups it needs. Size is the driver buyers most often leave out of a first enquiry, and it is the one that changes the quote fastest.
- Material
- The first material listed, Aluminium 5052-H32, rates 7/10 on our machinability scale at 60 HB. On this shop's scale a harder alloy means slower passes and more tool changes, and that is cycle time the quote has to carry.
- Order size
- Minimum order is 500 pieces, where setup and tooling are amortised across the batch and per-part cost settles around cycle time and material. Below that quantity the same part costs more per piece, not less.
See how cycle time is calculated in the machining time calculator and what else moves a price in the cost driver reference.
How these parts are inspected
Matched to the callouts above and the instruments actually on the floor.
- Coordinate measuring machine (Zeiss CONTURA G2, two machines, GR&R 8.4% on the critical feature)
- Dimensional report against the drawing, with a 100% check on critical features rather than a sample
- Certificate of conformance and the mill certificate with every shipment
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- How tight can you hold washer thickness?
- ±0.01 mm on a ground or lapped washer, ±0.05 mm as-stamped. If thickness sets a preload, order them ground and in a matched set from the same strip.
- Do you supply shim kits?
- Yes - a stack of 0.05, 0.1, 0.2 and 0.5 mm leaves lets your fitter dial in backlash on the bench instead of ordering four different parts.
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