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 72.75X1.78-N70
72.75 mm
1.78 mm
040
0.0005 kg
OR 73.0X4.0-N70
73.0 mm
4.0 mm
0.0038 kg
OR 74.0X4.0-N70
74.0 mm
4.0 mm
0.004 kg
OR 75.0X2.5-N70
75.0 mm
2.5 mm
0.0014 kg
OR 75.57X5.33-N70
75.57 mm
5.33 mm
337
0.0071 kg
OR 76.0X2.5-N70
76.0 mm
2.5 mm
0.0014 kg
OR 77.0X3.0-N70
77.0 mm
3.0 mm
0.0021 kg
OR 78.0X3.0-N70
78.0 mm
3.0 mm
0.0024 kg
OR 79.2X5.7-N70
79.2 mm
5.7 mm
0.0085 kg
OR 79.5X3.0-F70
79.5 mm
3.0 mm
0.0035 kg
OR 8.3X2.4-N70
8.3 mm
2.4 mm
0.0001 kg
OR 82.0X2.5-N70
82.0 mm
2.5 mm
0.0014 kg
OR 82.0X3.0-N70
82.0 mm
3.0 mm
0.0024 kg
OR 83.0X3.0-N70
83.0 mm
3.0 mm
0.003 kg
OR 83.8X2.62-N70
83.8 mm
2.62 mm
0.0017 kg
OR 84.1X5.7-F70
84.1 mm
5.7 mm
0.014 kg
OR 59.2X5.7-N70
59.2 mm
5.7 mm
0.0064 kg
OR 6.07X1.78-N70
6.07 mm
1.78 mm
010
0.0001 kg
OR 6.1X1.6-F70
6.1 mm
1.6 mm
0.0001 kg
OR 6.3X2.4-N70
6.3 mm
2.4 mm
0.0001 kg
OR 60.0X4.0-N70
60.0 mm
4.0 mm
0.003 kg
OR 61.0X3.0-N70
61.0 mm
3.0 mm
0.0011 kg
OR 62.0X4.0-N70
62.0 mm
4.0 mm
0.003 kg
OR 62.2X3.0-N70
62.2 mm
3.0 mm
0.0015 kg