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O-Rings
KESARIA RUBBER INDUSTRIES stands as one of India’s leading Silicone Oring manufacturers and exporters of Rubber O-Rings, with a production capacity of 550,000 units per day. We provide a diverse selection of elastomeric materials suitable for both special and standard applications, enabling our O-Rings to seal a wide range of liquids and gases. Our expertise includes producing O-Rings from 3 mm to 500 mm in various sizes and colors, using materials such as FKM, Silicone, EPDM, NBR, Neoprene, SBR, and Natural Rubber. The hardness of our O-Rings ranges from 30 to 95 Shore A Durometer. For custom O-Rings, precision in width, thickness, inner diameter, and outer diameter is crucial, and our engineers are available to ensure the specifications meet your needs.
O-Ring
Rubber O-Rings Manufacturer & Supplier — Kesaria Rubber Industries
- ISO Aligned Quality Systems
- Zero Rejection Track Record
- 5,000+ Active SKUs
- Exporting to 27+ Countries
Rubber O-Rings and Silicone O-Rings are a loop of elastomer with a round cross-section, seated in a groove and squeezed together during assembly between two or more parts — creating a seal at the interface to block the passage of liquids or gases. Custom O-ring selection is based on chemical compatibility, service temperature, sealing pressure, lubrication requirements, and working atmosphere. O-rings can form a static or dynamic seal. Production capacity: 550,000 units per day.
- 550,000Units Per Day
- 3 – 500 mmSize Range
- 30 – 90Shore A Hardness
- 35+ yearsManufacturing experience
O-Ring Materials We Offer
We provide a diverse selection of elastomeric materials suitable for both special and standard applications, enabling our O-rings to seal a wide range of liquids and gases.
NR — Natural Rubber
- Hardness: 40–90 Shore A
- High temp: 100°C
- Low temp: −50°C
NBR — Nitrile Rubber
- Hardness: 40–90 Shore A
- High temp: 130°C
- Low temp: −45°C
EPDM
- Hardness: 40–90 Shore A
- High temp: 150°C
- Low temp: −50°C
HNBR — Hydrogenated Nitrile
- Hardness: 40–90 Shore A
- High temp: 150°C
- Low temp: −45°C
Silicone
- Hardness: 30–80 Shore A
- High temp: 230°C
- Low temp: −60°C
FKM — Viton®
- Hardness: 50–90 Shore A
- High temp: 225°C
- Low temp: −15°C
SBR
- Hardness: 35–90 Shore A
- High temp: 120°C
- Low temp: −55°C
Neoprene (CR)
- Hardness: 40–80 Shore A
- High temp: 130°C
- Low temp: −40°C
| MATERIAL | NR | SBR | NBR | CR | EPDM | HNBR | ACM | CSM | SILICONE | FKM (VITON) |
|---|---|---|---|---|---|---|---|---|---|---|
| HARDNESS RANGE (SHORE A) | 40-90 | 35-90 | 40-90 | 40-80 | 40-90 | 40-90 | 40-80 | 40-80 | 30-80 | 50-90 |
| HIGH TEMP oC | 100 | 120 | 130 | 130 | 150 | 150 | 180 | 150 | 230 | 225 |
| LOW TEMP oC | -50 | -55 | -45 | -40 | -50 | -45 | -25 | -40 | -60 | -15 |
| STEAM | F | F | F | P | G | G | P | E | E | E |
E= EXCELLENT; G= GOOD; F= Fair; P= Poor; A=Available, NA= Not Available This guide is intended for general reference Only. The materials listed are the most commonly used. There are numerous compound variations designed for specific applications for which please forward details to our engineers for recommendation.
O-Ring Types & Sizes
Our O-rings are available in a wide range of sizes – from 3 mm to 500 mm – in various colors, and can form both static and dynamic seals. For custom O-rings, precision in width, thickness, inner diameter, and outer diameter is crucial; our engineers are available to ensure specifications meet your exact needs.
O-Ring Material Sub-Types
Select your material grade to view full specifications, temperature ranges, chemical compatibility, and available sizes.
NBR O-Rings
- Nitrile
- Temp: −45°C to 130°C
- Superior oil & fuel resistance
EPDM O-Rings
- EPDM
- Temp: −50°C to 150°C
- Excellent steam & weather resistance
HNBR O-Rings
- Hydrogenated Nitrile
- Temp: −45°C to 150°C
- High mechanical strength
Silicone O-Rings
- Silicone
- Temp: −60°C to 230°C
- Excellent steam & food-grade use
FKM O-Rings
- Viton®
- Temp: −15°C to 225°C
- Outstanding chemical & heat resistance
How Rubber O-Rings Helps You
Precision sealing for critical applications — reliable, durable, and engineered to perform under pressure.
How Rubber O-Rings Helps You
Precision sealing for critical applications – reliable, durable, and engineered to perform under pressure.
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Driven by innovation and dedication to customer satisfaction, with enriched experience of more than 35 years. 100% Quality & Quantity – On Time & Every Time.
- Leak-proof, reliable performance across industries
- Longer service life with reduced replacement cycles
- Cost efficiency through minimized downtime & maintenance
- Wide material range: Nitrile, EPDM, Silicone, FKM, and more
- Custom sizes and profiles available for diverse applications
- Superior resistance to pressure, temperature, and chemical exposure
- Trusted global supplier with proven quality assurance — 35+ years of sealing expertise
You have questions.
We have answers.
We follow stringent quality control measures and ISO aligned quality systems. Each batch undergoes rigorous quality checks to ensure leak-proof sealing solutions. Kesaria has achieved a zero rejection track record with clients like Caparo Maruti, Kohler, and Astral Poly Technik, and holds Class A Supplier (Category 1A) status from LAPP India.
