O-rings

Seals Product Introduction

# **SKF Static Seals & O-Rings: Reliable Sealing Solutions for Demanding Industrial Applications**

In industrial machinery, automotive systems, and precision equipment, effective sealing is critical to preventing leaks, contamination, and premature component failure. SKF, a global leader in sealing technology, offers a comprehensive range of **static seals and O-rings** designed to deliver superior performance in even the most demanding environments. Engineered with precision materials and advanced manufacturing techniques, SKF static seals ensure long-lasting reliability, reduced maintenance costs, and enhanced operational efficiency.

## **Technical Features & Material Excellence**

SKF static seals and O-rings are manufactured using high-quality elastomers and engineered polymers, including:

– **NBR (Nitrile Rubber):** Excellent resistance to oils, fuels, and hydraulic fluids, making them ideal for automotive and industrial hydraulic systems.
– **FKM (Fluoroelastomer/Viton®):** Superior chemical and heat resistance, suitable for high-temperature applications in chemical processing and aerospace.
– **EPDM (Ethylene Propylene Diene Monomer):** Outstanding resistance to water, steam, and weathering, commonly used in food processing and HVAC systems.
– **Silicone & PTFE:** Used in extreme temperature ranges and applications requiring low friction or high purity, such as medical and semiconductor equipment.

SKF seals are precision-molded to ensure consistent dimensions and optimal compression set resistance, maintaining a secure seal over extended periods.

## **Performance Advantages**

– **Leak Prevention:** Precision-engineered sealing surfaces minimize fluid or gas leakage, even under high-pressure conditions.
– **Long Service Life:** High-grade materials resist degradation from chemicals, temperature fluctuations, and mechanical stress.
– **Reduced Friction & Wear:** Optimized seal geometry ensures minimal drag, enhancing energy efficiency in dynamic systems.
– **Wide Temperature & Pressure Range:** Suitable for applications ranging from cryogenic conditions to +300°C (depending on material).
– **Easy Installation:** Standardized sizes and robust design simplify assembly and replacement.

## **Typical Applications**

SKF static seals and O-rings are widely used across industries, including:

– **Industrial Machinery:** Hydraulic cylinders, pumps, compressors, and valve sealing in heavy equipment.
– **Automotive Systems:** Engine gaskets, fuel systems, transmission seals, and brake components.
– **Precision Equipment:** Semiconductor manufacturing, medical devices, and laboratory instruments requiring contamination-free sealing.
– **Energy & Chemical Processing:** Seals for pipelines, reactors, and offshore equipment exposed to aggressive media.

By choosing SKF static seals and O-rings, engineers and maintenance professionals benefit from a trusted sealing solution that enhances equipment durability, reduces downtime, and improves overall system performance. Whether in harsh industrial environments or precision applications, SKF delivers sealing reliability backed by decades of engineering expertise.

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Designation O-ring inside diameter O-ring cross section Dash-number Mass
OR 26.0X4.0-N70
26.0 mm
4.0 mm
0.0014 kg
OR 266.07X6.99-N70
266.07 mm
6.99 mm
450
0.0421 kg
OR 27.2X3.0-N70
27.2 mm
3.0 mm
0.0009 kg
OR 278.77X5.33-N70
278.77 mm
5.33 mm
379
0.0251 kg
OR 28.0X3.0-N70
28.0 mm
3.0 mm
0.0009 kg
OR 285.1X6.99-N70
285.1 mm
6.99 mm
0.0444 kg
OR 29.1X1.6-N70
29.1 mm
1.6 mm
0.0001 kg
OR 29.6X2.4-N70
29.6 mm
2.4 mm
0.0004 kg
OR 29.74X3.53-N70
29.74 mm
3.53 mm
217
0.0011 kg
OR 290.0X3.5-N70
290.0 mm
3.5 mm
0.0112 kg
OR 290.0X5.0-N70
290.0 mm
5.0 mm
0.0224 kg
OR 290.0X7.0-N70
290.0 mm
7.0 mm
0.0234 kg
OR 297.0X4.0-N70
297.0 mm
4.0 mm
0.0149 kg
OR 304.0X5.7-N70
304.0 mm
5.7 mm
0.1 kg
OR 304.17X5.33-N70
304.17 mm
5.33 mm
381
0.0281 kg
OR 31.12X5.33-N70
31.12 mm
5.33 mm
322
0.0033 kg
OR 209.14X3.53-N70
209.14 mm
3.53 mm
267
0.0085 kg
OR 21.5X2.4-N70
21.5 mm
2.4 mm
0.0004 kg
OR 210.0X5.0-N70
210.0 mm
5.0 mm
0.0161 kg
OR 215.27X5.33-N70
215.27 mm
5.33 mm
371
0.019 kg
OR 215.57X2.62-N70
215.57 mm
2.62 mm
173
0.0045 kg
OR 22.1X1.6-F70
22.1 mm
1.6 mm
0.0003 kg
OR 22.22X2.62-N70
22.22 mm
2.62 mm
0.0005 kg
OR 221.62X6.99-N70
221.62 mm
6.99 mm
0.0339 kg