Composite & PTFE Bushings
Dry-running composite bushings for dirty, washdown or unlubricated service.
Composite bushings for places where grease is not possible - food plants, underwater, inside sealed units. They trade load capacity for the ability to run dry and ignore dirt.
Ø3–Ø100 mm0.5–3.0 MPa·m/s−40 to 120 °C0.05–0.2 -
Lead Time
3–5 weeks
Min Order
50 pieces
Certifications
ISO 9001:2015 · FDA-compliant grades
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bore range | Ø3–Ø100 | mm |
| PV limit (dry) | 0.5–3.0 | MPa·m/s |
| Service temperature | −40 to 120 | °C |
| Coefficient of friction | 0.05–0.2 | - |
| Absorption | Low (PTFE-lined) | - |
| Lubrication | None | - |
Available Materials
- PTFE-lined steel
- POM / acetal
- Nylon
- Bronze + PTFE
- UHMW-PE
Typical Applications
- Food machinery pivots
- Underwater linkages
- Packaging guides
- Washdown conveyors
- Consumer mechanisms
Surface Finishes
- As-supplied
- Machined OD
- Flanged
- None required
Industries Served
- Food Processing
- Water Treatment
- Pharmaceutical
- Packaging
- Marine
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.
- Part size
- Bore range at Ø3–Ø100 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.
- Order size
- Minimum order is 50 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.
- Certification and paperwork
- ISO 9001:2015, FDA-compliant grades. On a certified family the inspection and documentation work is part of the price: first article inspection, material traceability and the dimensional report are produced per order, not per sample.
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
- Bore gauges and an optical comparator for hole position and edge form
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- How much load can a dry bushing take?
- Far less than a bronze one that is fed oil, and the limit depends on speed. Read it off the PV chart for your actual speed rather than picking a number that looks comfortable.
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