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Pile of bonded washers

Quality o-rings
and bonded washers

Delivery service available to all
destinations throughout the UK.

O-Rings and O-Ring Cord

O-rings are simple in shape and easily stretched for assembly and available in a choice of sizes and materials.

They are the most versatile and economic form of seal on the market and are accepted by engineers as an essential item in hydraulic and pneumatic equipment.

Black o-rings

Click to view and download details O-RING SIZES METRIC O-RING SIZES IMPERIAL O-RING GROOVE DESIGN O-RING CORD TOLERANCE

Ethylene Propylene Rubber O-Rings (EPDM)

These o-rings have excellent resistance to weathering, water and steam, and have a high performance in castor and some phosphate ester based fluids. It is functional in both low and high temperatures.

This material is good for sealing both boiling water and steam, making them perfect for central heating systems. They should never be used in contact with mineral based fluids or di-ester based lubricants due to excess swell and deterioration.

Black o-rings

Viton (FPM) Fluorocarbon Rubber O-Rings

This material is popular due to its excellent high temperature capability, and resistance to hydraulic oils, petrol and other chemicals.

These o-rings can only handle low temperatures to -15 degrees Celsius. Some grades of Viton can accommodate lower temperatures but this functionality does come at an increased cost.

Black o-rings

Silicone Rubber O-Rings (SIL)

Silicone rubber o-rings are ideal for high temperatures and are widely used in the medical and food production field due to its non-toxicity.

However, they have a poor tensile strength, poor tear and abrasion resistance, high permeation of gasses, and poor resistance to mineral fluids.

Black o-rings

Fluorosilicone Rubber O-Rings

Silicone rubber can be chemically modified to become fluorosilicone, which gives it reasonable oil and fuel resistance combined with high and low temperature capabilities.

They still have poor strength like the silicone rubber, and are an expensive option usually limited to specialised fields such as aerospace.

Black o-rings

Perfluoroelastomer (FFKM) Kalrez O-Rings

Kalrez is considered to be the best material for o-rings. It resists over 1800 different chemicals and offers the high temperature stability of PTFE (327 degrees Celsius).

It is used in highly aggressive chemical processing, semiconductor wafer processing, pharmaceutical, oil and gas recovery, aerospace and petroleum applications.

Black o-rings

Bonded Washers

We stock a wide variety of bonded washers, including all international standard size washers to suit both imperial and metric thread sizes.

Our bonded washers come in both metals and rubbers to suit your needs, and have both the traditional non-centralising type and the newer self-centralising type.

Bonded washers

Download Our PDF on Bonded Washers

We welcome any size order from all industry sectors

Call us today to place an order on 01202 862 730

PIX Europe codex INA SKF NACHI NSK RHP  FAG NTN