Silicraft Industrial Silicone Atelier
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Silicone Bellows
IG-005 · silicone-bellows

Silicone Bellows

Corrugated protective boot

The Silicone Bellows is a corrugated protective boot. We mold it by LSR / HCR molding in a Shore A 45–65 compound, holding ±0.30 mm across production lots, and it complies with ASTM D2000 · SAE J200 · RoHS · REACH. Typical minimum order is 500 pcs; series lead time is 24 days.

A corrugated boot that protects a moving shaft or rod while taking up misalignment. Wall thickness is set so the bellows flexes in the convolution, not at the flange.

  • Six controlled convolutions
  • Takes angular misalignment
  • Bonded flange options
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Specification

Hardness Shore A 45–65
Service temperature -70–250 °C
Achievable tolerance ±0.30 mm
Molding process LSR / HCR molding
Typical MOQ 500 pcs
Lead time 24 days

Compliance

  • ASTM D2000
  • SAE J200
  • RoHS
  • REACH

Frequently asked about this part

What is the minimum order quantity for the Silicone Bellows?

Typically 500 pcs. Below that we can still quote, but tooling amortisation starts to dominate the unit price. Sampling and tooling are quoted separately from series production.

What is the lead time for the Silicone Bellows?

Series production runs 24 days after sample approval. Tool design and T1 sampling add 10–14 days up front, and DFM feedback on your drawing comes back within 48 hours.

What tolerance can you hold on the Silicone Bellows?

±0.30 mm is the achievable production tolerance for this part family. It covers the dimensions that matter for fit and sealing; we confirm which ones are critical in the DFM memo before tooling is cut.

Which standards does the Silicone Bellows comply with?

It is produced to ASTM D2000 · SAE J200 · RoHS · REACH. Certificates and test reports are on file and can be forwarded once an NDA is in place.

How is the Silicone Bellows molded?

By LSR / HCR molding, in a cell dedicated to that silicone grade. Medical parts are never run on a line that has produced kitchenware — each grade keeps its own press, tooling and QC station.

What hardness and temperature range does the Silicone Bellows use?

Shore A 45–65, with a service range of -70–250 °C. If your application needs a different durometer in the same geometry, we can usually re-quote the compound without cutting new tooling.

Other products in this category

Industrial Silicone Seal Strip Industrial Silicone Seal Strip Extruded D-profile, adhesive backed Vibration Damping Pad Vibration Damping Pad Ribbed, 30–50 Shore A Silicone Rubber Keypad Silicone Rubber Keypad 1M-cycle domes, no legends High-Temperature Silicone Roller High-Temperature Silicone Roller 300 °C rated, ground finish

Need this part quoted?

Send the drawing or a sample. DFM feedback and a quotation within two business days.

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