Seals & O-Rings

Seals and O-rings are used to join two parts of a machine, engine or other mechanical assembly by filling the space between both parts, creating a filled and seal space in between. This seal prevents particle, vapour and fluid leakage to protect and maintain pressure whilst keeps debris out, ensuring proper function and safety. Seals and O-rings are used in various fields and industries including automotive, aerospace and general engineering.

How do seals and O-rings work?
A seal or O-ring is seated in a groove in one of the two parts to be joined then compressed between these two components to the corresponding groove creating a securely sealed joint. They can be used in dynamic joints where there is movement as well as in static or fixed applications.

Types of seals and O-rings
Seals and O-rings come in various materials suited to different purposes. Some have a high temperature tolerance for use in both hot and cold applications, while others are made to be chemically resistant for use in lab or test equipment. Available in a wide range of sizes both in single size packs or in seal and O-ring kits for general maintenance or when looking after a range of sealed part to ensure the correct size is available.

Seals and O-rings are typically made of elastomers like nitrile rubber and silicone, but they also come in plastics, metals and other materials. This variety of material allows for specific seal and O-rings to be used to ensure the best fitting and most reliable seal.

Sizes vary between seal and ring types both in diameter and thickness, these variations help provide an exact and precise seal to protect the joint. Both Metric and Imperial sizes are available to replace new and old seals and rings whether maintaining modern parts or older machines, engines and other mechanical parts.

...
Read more Read less

Filters

Viewing 21 - 40 of 1501 products
Results per page
Description Price Inside Diameter Outside Diameter Thickness Type Material Minimum Operating Temperature Maximum Operating Temperature
RS Stock No. 129-000
BrandRS PRO
£5.42
1 Bag of 50
Bag(s)
4.47mm 7.93mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 128-827
BrandRS PRO
£3.10
1 Bag of 50
Bag(s)
8.1mm 11.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-467
BrandRS PRO
£9.04
1 Bag of 50
Bag(s)
10.37mm 15.88mm 2.03mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 129-038
BrandRS PRO
£5.70
1 Bag of 50
Bag(s)
7.65mm 11.11mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 527-9790
BrandRS PRO
£6.17
1 Bag of 50
Bag(s)
7.65mm 7/16in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 128-811
BrandRS PRO
£3.10
1 Bag of 50
Bag(s)
6.1mm 9.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-631
BrandRS PRO
£2.97
1 Bag of 50
Bag(s)
3/8in 1/2in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 129-022
BrandRS PRO
£5.54
1 Bag of 50
Bag(s)
6.07mm 9.52mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 527-9740
BrandRS PRO
£5.54
1 Bag of 50
Bag(s)
2.9mm 1/4in 1.78mm O-Ring Seal Silicone -60°C +200°C
RS Stock No. 129-016
BrandRS PRO
£5.54
1 Bag of 50
Bag(s)
5.28mm 8.73mm 1.78mm O-Ring Seal Fluorocarbon Elastomer -20°C +200°C
RS Stock No. 689-653
BrandRS PRO
£3.33
1 Bag of 50
Bag(s)
7/16in 5/8in 3/32in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 211-8945
BrandRS PRO
£1.456
Each (In a Pack of 5)
Units
20mm 30mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 689-619
BrandRS PRO
£2.52
1 Bag of 50
Bag(s)
1/4in 3/8in 1/16in O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 128-833
BrandRS PRO
£3.42
1 Bag of 50
Bag(s)
10.1mm 13.3mm 1.6mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-489
BrandRS PRO
£10.67
1 Bag of 50
Bag(s)
17.28mm 23.8mm 2.03mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 211-8866
BrandRS PRO
£1.52
Each (In a Pack of 5)
Units
16mm 28mm 7mm Shaft Seal Nitrile Rubber -40°C +100°C
RS Stock No. 128-912
BrandRS PRO
£4.87
1 Bag of 50
Bag(s)
14.6mm 19.4mm 2.4mm O-Ring Seal Nitrile Rubber -30°C +120°C
RS Stock No. 689-524
BrandRS PRO
£15.95
1 Bag of 50
Bag(s)
10.7mm 16mm 1.5mm Bonded Seal Nitrile Rubber -10°C +80°C
RS Stock No. 749-610
BrandRS PRO
£0.683
Each (In a Pack of 4)
Units
14mm 21.5 → 23.5mm 5.5mm V-Ring Seal Nitrile Rubber -40°C +100°C
RS Stock No. 527-9914
BrandRS PRO
£13.31
1 Bag of 50
Bag(s)
21.82mm 1-1/8in 3.53mm O-Ring Seal Silicone -60°C +200°C
Related Products
The RS Pro V-Ring is an all-rubber seal ...
Description:
The RS Pro V-Ring is an all-rubber seal designed for rotary shafts. Mounting directly onto the shaft, the elastic body holds itself firmly on the rotating shaft while the lip seals axially against the counter face, bearing race, bore housing or similar surfaces. • Made from solid nitrile rubber • ...
Also known as oil seals, these seals are ...
Description:
Also known as oil seals, these seals are ideal for excluding dirt, dust, water or any other contaminant whilst retaining lubricant in rotary shaft equipment. They are generally used as a means of protecting the bearings of rotating shafts. Replaceable without damage to the housing bore No need for circlips, ...
These seals prevent fluid flowing from adjoining housings.This ...
Description:
These seals prevent fluid flowing from adjoining housings.This range performs the dynamic sealing that takes place when two parts move one against the other.These seals for rotating shafts consist of three parts: seal armature, spring and nitrile elastomer. Lip seals (SPI seals).
Simmering Rotating shaft seals are a high performance ...
Description:
Simmering Rotating shaft seals are a high performance oil seal delivering exceptional wear resistance and performance to a variety of functions including aerospace, railway, power transmission, automotive, machine tools, fluid handling, production line, energy and power generation.With an elastomer outer casing manufactured from NBR 902 nitrile rubber and spring loaded ...