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 247.0X6.99-N70
247.0 mm
6.99 mm
0.0374 kg
OR 248.0X3.0-N70
248.0 mm
3.0 mm
0.0072 kg
OR 25.0X2.5-N70
25.0 mm
2.5 mm
0.00055 kg
OR 25.3X2.4-N70
25.3 mm
2.4 mm
0.0005 kg
OR 25.5X2.5-N70
25.5 mm
2.5 mm
0.0006 kg
OR 250.0X3.5-N70
250.0 mm
3.5 mm
0.1 kg
OR 259.3X3.0-N70
259.3 mm
3.0 mm
0.0072 kg
OR 26.0X5.0-N70
26.0 mm
5.0 mm
0.00238 kg
OR 26.2X3.0-N70
26.2 mm
3.0 mm
0.0009 kg
OR 26.34X5.33-N70
26.34 mm
5.33 mm
319
0.0029 kg
OR 270.0X3.0-N70
270.0 mm
3.0 mm
0.0077 kg
OR 28.25X2.62-N70
28.25 mm
2.62 mm
122
0.0004 kg
OR 29.0X2.5-N70
29.0 mm
2.5 mm
0.0004 kg
OR 29.2X3.0-F70
29.2 mm
3.0 mm
0.0014 kg
OR 29.2X3.0-N70
29.2 mm
3.0 mm
0.0009 kg
OR 29.51X5.33-N70
29.51 mm
5.33 mm
321
0.0032 kg
OR 196.2X6.99-N70
196.2 mm
6.99 mm
444
0.0301 kg
OR 20.0X1.5-N70
20.0 mm
1.5 mm
0.0001 kg
OR 20.0X2.0-N70
20.0 mm
2.0 mm
0.0001 kg
OR 20.22X3.53-N70
20.22 mm
3.53 mm
211
0.001 kg
OR 202.57X6.99-N70
202.57 mm
6.99 mm
445
0.0319 kg
OR 202.87X2.62-N70
202.87 mm
2.62 mm
171
0.0043 kg
OR 209.3X5.7-N70
209.3 mm
5.7 mm
0.0219 kg
OR 21.0X2.0-N70
21.0 mm
2.0 mm
0.0001 kg