COMING SOON
Oil seals
Rotary shaft, V-ring and cassette seal information will be added in a future range update.
RELIABLE SEALS. LASTING PERFORMANCE.Material compatibilityDimensional accuracyApplication-led selection
01 / PRODUCT FOCUS
One small seal.
Many precise profiles.
Rubrings is a Delhi-based O-ring trader and supplier. Explore industrial rubber O-rings by profile, material and dimensions.
01 / PRODUCT PROFILE
Standard & metric O-rings
A circular cross-section for static and selected dynamic sealing. Specify the size, compound and operating conditions.
AS568 · JIS · ISO references
Explore profile ↗02 / PRODUCT PROFILESquare rings & washers
Flat faces and a square or rectangular section. Match the profile to the drawing and the intended sealing arrangement.
Flat ring · Rubber washer
Explore profile ↗03 / PRODUCT PROFILEQuad rings / X-rings
A four-lobed sealing profile. Check the gland, movement and compound when evaluating an alternative to an O-ring.
Four-lobed cross-section
Explore profile ↗04 / PRODUCT PROFILED-rings
A rounded sealing face with a flat side. A dedicated profile needs its own dimensions and gland assessment.
D-shaped cross-section
Explore profile ↗05 / PRODUCT PROFILECustom rubber products
Rubber bushes, mounts and grommets developed around a drawing, sample or application requirement.
Drawing-led specifications
Explore profile ↗COMING SOON
Hydraulic seals
Rod, piston, wiper and guide products are planned for a later release.
Studio visuals are representative; cross-section diagrams are not to scale. Availability and final specifications are confirmed against the enquiry.
02 / MATERIAL INTELLIGENCE
The right material.
The difference that matters.
Every environment asks something different of a seal. Start with the material, then specify the compound.
01Oil resistance
NBR
Nitrile
A practical starting point for mineral-oil sealing and general industrial applications.
Explore NBR O-rings ＋02Mechanical resilience
HNBR
Hydrogenated nitrile
A nitrile-based family to consider when heat, ozone exposure and mechanical duty matter.
Explore HNBR O-rings ＋03Thermal resistance
FKM
Fluorocarbon
A material family to consider for elevated temperatures and many oils and fuels.
Explore FKM O-rings ＋04Weather resistance
EPDM
Ethylene propylene
Commonly considered for water systems and resistance to ozone and weathering.
Explore EPDM O-rings ＋05Temperature flexibility
VMQ
Silicone
A flexible material family for selected static sealing and temperature-sensitive applications.
Explore VMQ O-rings ＋06Balanced performance
CR
Neoprene
Chloroprene rubber for selected sealing duties involving weathering and moderate oil exposure.
Explore CR O-rings ＋General selection guidance, not a Rubrings product datasheet. Final performance depends on compound, fluid, temperature, pressure and gland design. Read the selection guide or compare specialist O-ring materials.
DIMENSIONS / PRECISION, DEFINED
Every dimension
has a purpose.
A clear specification starts with two measurements. Add the operating conditions to make it an engineering brief.
O-RING / DIMENSIONAL REFERENCEFIG. 01
Specify as ID × cross-section, followed by material and hardness.
×
Outside diameter 31 mm
Geometry only: OD = ID + 2 × CS. Not a groove-design calculator.Your specification checklist
- Dimensions
- Inside diameter × cross-section, with units
- Size reference
- Metric dimensions or a verified AS568 / ISO 3601 reference
- Material
- Polymer and compound grade
- Hardness
- Required Shore A value and tolerance
- Temperature
- Minimum, continuous and peak exposure
- Pressure & movement
- Working pressure; static or dynamic service
- Fluid & environment
- Chemical name, concentration and exposure
03 / INDUSTRIES
Behind the systems
that keep things moving.
Start with the application. Select the seal around the real operating conditions.
Hydraulics
& pneumatics
Fluid compatibility, pressure, clearances and movement.
Pumps
& valves
Media exposure, temperature cycles and static or dynamic duty.
Automotive
& machinery
Operating fluids, vibration, heat and assembly requirements.
Water
& process systems
Water chemistry, cleaning cycles and contact approvals.
Automotive · Aerospace · Oil & gas · Chemical · Food processing · Pharmaceutical · Water treatmentExplore industry applications ↗
04 / RESOURCES & KNOWLEDGE
Better informed.
Better specified.
Useful answers for engineers, procurement teams and maintenance professionals.
01 / SIZE REFERENCE
Find the dimensions.
Search nominal AS568 and JIS sizes, then add the selected dimensions to your enquiry.
Open size chart↗02 / MATERIAL LIBRARYKnow the rubber.
Explore rubber families, common abbreviations and property-based selection groups.
Explore rubber types↗03 / PROPERTIESCompare the fundamentals.
A visible reference table for density, glass transition and indicative service temperature.
View properties chart↗04 / SELECTIONSpecify with confidence.
Understand compound, hardness, pressure, movement and the details that determine fit.
Read selection guide↗Small ring.
Big responsibility.
An O-ring seals between mating surfaces. Its circular cross-section deforms inside a correctly designed groove.
Same shape.
Different strengths.
NBR, HNBR, FKM, EPDM, silicone and neoprene serve different conditions. Colour alone cannot identify a compound.
The right fit.
Beyond dimensions.
Size is the starting point. Fluid, temperature, pressure and movement complete the specification.
DIMENSIONS / 4 MIN READHow to measure
Six materials.
How to measure
an O-ring.
Understand ID, cross-section and the information a drawing needs.
Read sizing guide ＋MATERIALS / 4 MIN READSix materials.
Which one fits?
Build a sensible material shortlist around your operating environment.
Read material guide ＋Frequently asked
How do I specify an O-ring?
State inside diameter, cross-section, units, compound, hardness, fluid, temperature, pressure and quantity. Include a drawing or standard reference when available.
Does colour identify the material?
No. Colour is not a reliable material identifier. Confirm the compound code and supporting documentation.
Is there one universal pressure rating?
No. Pressure capability depends on the compound, hardness, clearance, temperature and seal arrangement. Use an application-specific review.
Can I choose an O-ring by size alone?
No. Two identical sizes can behave differently because of their material, hardness and operating environment.
05 / YOUR NEXT SEAL STARTS HERE
Tell us what
you need.
Share your product requirement or question. Include your contact details so Rubrings can follow up.
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