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 380.37X6.99-N70
380.37 mm
6.99 mm
459
0.0605 kg
OR 39.0X3.5-N70
39.0 mm
3.5 mm
0.0015 kg
OR 39.2X2.0-N70
39.2 mm
2.0 mm
0.0005 kg
OR 390.0X3.0-N70
390.0 mm
3.0 mm
0.011 kg
OR 28.0X2.0-N70
28.0 mm
2.0 mm
0.0004 kg
OR 28.0X2.5-N70
28.0 mm
2.5 mm
0.0004 kg
OR 28.3X1.78-N70
28.3 mm
1.78 mm
024
0.0001 kg
OR 285.0X3.0-N70
285.0 mm
3.0 mm
0.0081 kg
OR 285.0X4.0-N70
285.0 mm
4.0 mm
0.0145 kg
OR 29.0X3.5-N70
29.0 mm
3.5 mm
0.0012 kg
OR 29.1X1.6-F70
29.1 mm
1.6 mm
0.0004 kg
OR 29.5X5.7-N70
29.5 mm
5.7 mm
0.0035 kg
OR 29.82X2.62-N70
29.82 mm
2.62 mm
123
0.0008 kg
OR 290.0X3.0-N70
290.0 mm
3.0 mm
0.0083 kg
OR 291.47X6.99-N70
291.47 mm
6.99 mm
452
0.0455 kg
OR 297.8X6.99-N70
297.8 mm
6.99 mm
0.044 kg
OR 3.3X2.4-N70
3.3 mm
2.4 mm
0.0001 kg
OR 31.0X2.5-N70
31.0 mm
2.5 mm
0.0007 kg
OR 31.47X1.78-N70
31.47 mm
1.78 mm
026
0.0001 kg
OR 31.5X3.0-N70
31.5 mm
3.0 mm
0.0009 kg
OR 314.0X4.0-N70
314.0 mm
4.0 mm
0.0159 kg
OR 314.0X5.7-N70
314.0 mm
5.7 mm
0.0319 kg
OR 315.0X3.0-N70
315.0 mm
3.0 mm
0.0088 kg
OR 32.0X2.0-N70
32.0 mm
2.0 mm
0.0004 kg