Injection-Moulded Seals & O-Rings
Injection-moulded seals, gaskets and O-rings in elastomers and engineering plastics, produced in the colour and hardness specified.
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Plastic & Injection Parts
Flexible Bellows & Dust Boots
Moulded ribbed bellows and dust boots for linear and rotary motion, made to the stroke they have to accommodate.
| Part weight | 1 g – 15 kg |
|---|---|
| Mould life | Typically 200 000 – 500 000 shots per tool, by material and geometry |
| Dimensional | ±0.2 mm general, shrinkage compensated into the tool |
About this part
What it is and why it is made that way
Bellows and dust boots in this line are the ribbed kind used on linear slides, ball screws and rotary joints. They are sized by the stroke they have to allow, not by the diameter alone — a bellows that is too short for its travel bottoms out and tears. Each tool is developed against a drawing, and samples are checked before the batch is moulded.
- Rib count and free length sized to the required stroke
- Moulded in the elastomer suited to the environment
- Tooling developed and sampled against the drawing
- Wall thickness held consistent through the convolutions
Materials
- ABS and ABS/PC
- Nylon PA6 / PA66
- POM (acetal)
- PP and PE
- PVC-U
- Silicone and TPE
Production processes
- Injection moulding
- Overmoulding
- Insert moulding
- Compression moulding
- Silicone moulding
- Two-shot moulding
Typical applications
- Linear way covers
- Ball screw protection
- Rotary joint dust seals
- Cable protection
Specification
Technical detail
The ranges below are what this shop typically holds. Anything tighter than the baseline is possible — send the drawing and we will confirm it against your specific tolerances rather than quote from a table.
| Part weight | 1 g – 15 kg |
|---|---|
| Mould life | Typically 200 000 – 500 000 shots per tool, by material and geometry |
| Dimensional | ±0.2 mm general, shrinkage compensated into the tool |
| Colour | Natural, black, white or custom Pantone — minimum order quantity applies |
| Tooling | Aluminium or steel mould; T1 lead time quoted per project |
| Free length | To drawing, ±2 mm |
| Stroke rating | Matched to the specified working travel |
| Material | Silicone, EPDM, NBR or PVC, to environment |
Material and finish are yours to choose. The lists above are the families this part is normally made in. We will not substitute a grade or change a tolerance without telling you first — and asking.
In the same process line
Other Plastic Parts parts
If this is not quite your part, these are made on the same equipment with the same inspection.
Custom Gaskets & Sealing Rings
Flat gaskets and moulded sealing rings cut or moulded to the flange geometry, with the bore and outer diameter held to drawing.
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Rubber Bellows & Suction Boots
Moulded rubber bellows and suction boots that protect a moving joint from dust, coolant and impact.
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Get a quote for this part
Send the drawing and we will quote it against your material, your tolerance and your quantity. One business day, in writing, with a lead time you can plan around.