**Introduction to SKF Static Seals and Back-Up Rings: Engineered for Reliability and Performance**
In demanding industrial environments, preventing leaks and ensuring long-term sealing integrity are critical to maintaining equipment efficiency and reducing downtime. SKF, a global leader in sealing solutions, offers a comprehensive range of **static seals and back-up rings** designed to deliver exceptional performance in high-pressure, high-temperature, and chemically aggressive applications. These precision-engineered components are trusted across industries—from heavy machinery and automotive systems to hydraulic equipment and precision instruments—where reliability and durability are non-negotiable.
### **Technical Features and Design Excellence**
SKF static seals and back-up rings are manufactured using advanced materials and cutting-edge engineering to meet the toughest operational challenges. Key features include:
– **High-Performance Materials**: SKF utilizes premium elastomers (such as FKM, NBR, and EPDM) and thermoplastics tailored for specific conditions, ensuring resistance to extreme temperatures, hydraulic fluids, and corrosive media.
– **Optimized Geometry**: Precision-molded profiles ensure uniform compression and effective sealing, even in uneven or dynamic mating surfaces.
– **Back-Up Ring Support**: Reinforcing back-up rings prevent extrusion and deformation of primary seals under high-pressure conditions, extending service life.
– **Customization Options**: Available in a variety of sizes, hardness levels, and cross-sections to fit unique application requirements.
### **Performance Advantages**
SKF’s static seals and back-up rings are designed to outperform conventional solutions by addressing common failure modes such as extrusion, blow-out, and chemical degradation. Benefits include:
– **Enhanced Pressure Resistance**: Back-up rings stabilize primary seals, enabling reliable performance in systems exceeding 5,000 psi (350 bar).
– **Extended Service Intervals**: Reduced wear and leakage minimize maintenance needs, lowering total cost of ownership.
– **Broad Compatibility**: Suitable for use with oils, greases, water, and aggressive chemicals, making them ideal for diverse industrial and automotive applications.
– **Temperature Resilience**: Operates reliably in a range from -40°C to +200°C (-40°F to +392°F), depending on material selection.
### **Typical Applications**
SKF static seals and back-up rings are widely used in:
– **Hydraulic Systems**: Cylinders, pumps, and valves in construction, mining, and agricultural machinery.
– **Automotive Components**: Transmission systems, fuel injectors, and brake assemblies where high-pressure sealing is essential.
– **Industrial Machinery**: Presses, compressors, and turbines requiring robust sealing under cyclic loads.
– **Precision Equipment**: Aerospace and semiconductor manufacturing tools demanding contamination-free operation.
By combining material expertise with precision engineering, SKF’s static seals and back-up rings provide a dependable solution to sealing challenges—ensuring leak-free operation, reducing energy losses, and enhancing the longevity of critical equipment. For industries where failure is not an option, SKF delivers sealing solutions that stand the test of time.
*For specific technical specifications or application support, consult SKF’s engineering team or product catalog.*
Designation | O-ring inside diameter | Width | Dash-number | Mass |
---|---|---|---|---|
139.07 mm |
2.0 mm |
433 |
0.0068 kg |
|
142.24 mm |
2.0 mm |
434 |
0.0073 kg |
|
247.24 mm |
1.5 mm |
273 |
0.003 kg |
|
13.64 mm |
1.7 mm |
311 |
0.0005 kg |
|
16.81 mm |
1.7 mm |
313 |
0.0005 kg |
|
63.17 mm |
1.3 mm |
144 |
0.0005 kg |
|
32.69 mm |
1.7 mm |
323 |
0.001 kg |
|
66.34 mm |
1.3 mm |
146 |
0.0006 kg |
|
34.29 mm |
1.7 mm |
324 |
0.001 kg |
|
72.69 mm |
1.3 mm |
150 |
0.0005 kg |
|
40.64 mm |
1.7 mm |
326 |
0.0012 kg |
|
152.07 mm |
1.3 mm |
163 |
0.0012 kg |
|
46.99 mm |
1.7 mm |
328 |
0.0014 kg |
|
177.47 mm |
1.3 mm |
167 |
0.0015 kg |
|
12.29 mm |
1.5 mm |
206 |
0.0002 kg |
|
20.22 mm |
1.5 mm |
211 |
0.0003 kg |
|
145.64 mm |
1.5 mm |
256 |
0.0014 kg |
|
148.82 mm |
1.5 mm |
257 |
0.0018 kg |
|
158.34 mm |
1.5 mm |
259 |
0.0019 kg |
|
164.69 mm |
1.5 mm |
260 |
0.0021 kg |