A bushing is defined by two numbers: the bore that carries the shaft and the outside diameter that seats in the housing. Get either wrong and you get play, heat or a seized assembly — which is why every dimension here is measured, not assumed.
Bore and OD machined to your fit class — clearance, transition or press — with concentricity verified.
Bronze, stainless, hardened steel or engineering plastics (PEEK, PTFE) selected for the duty cycle.
Zeiss CMM dimensional reports per batch, so receiving inspection is a formality.
Real capability windows — verified in-house, not estimated.
| Capability | Specification |
|---|---|
| Typical parts | Bushings · sleeves · spacers · wear rings · spacer tubes |
| Diameter range | Small diameters from Ø 0.5 mm (Swiss-type) to Ø 65 mm turning |
| Typical tolerance | ±0.005 mm typical where applicable · ±0.01 mm standard |
| Surface finish | Down to Ra 0.2 µm |
| Materials | Bronze · stainless · alloy steel · PEEK · PTFE |
| Inspection | Zeiss CMM bore, OD and concentricity verification |
| Prototype lead time | Typically 5–10 working days |
A transparent, engineering-led process built for long-term supply programs — not one-off transactions.
Send drawings and program context. Our engineers run a DFM review and flag tolerances, materials and risk before any cutting begins.
You receive a transparent quote plus a material-verification plan — grade, EN/DIN check and certificate strategy for your application.
In-house precision machining, then Zeiss CMM dimensional inspection and spectrometer material verification on critical batches.
Kitted, ESD-safe or cleanroom packaging, with local engineering and after-sales support through our German partner.
Tell us about your program. The fields below help our engineering team prioritize recurring, long-term supply programs with equipment manufacturers.
Every critical dimension is verified on our in-house Zeiss CMM · material chemistry confirmed by spectrometer · EN 10204 3.1 certificates available.
Prefer email? Write to us directly at info@prototech-machining.com