Piston seals

Seals Product Introduction

**Introduction to SKF Hydraulic Seals and Piston Seals: Engineered for Performance and Reliability**

In demanding industrial and mobile hydraulic applications, sealing systems play a critical role in ensuring efficiency, longevity, and contamination control. SKF, a global leader in precision engineering, offers a comprehensive range of **hydraulic seals and piston seals** designed to meet the rigorous demands of heavy machinery, automotive systems, and precision hydraulic equipment. Combining advanced materials, innovative design, and decades of expertise, SKF seals deliver superior leak prevention, reduced friction, and extended service life—even under extreme pressures, temperatures, and dynamic operating conditions.

### **Technical Features and Innovation**
SKF hydraulic seals and piston seals are engineered with cutting-edge technologies to address common challenges such as fluid leakage, wear, and energy loss. Key features include:

– **High-Performance Materials**: SKF utilizes specialized polyurethane (PU), nitrile rubber (NBR), and thermoplastic materials tailored for compatibility with hydraulic fluids, aggressive media, and wide temperature ranges (-40°C to +200°C).
– **Optimized Seal Geometry**: Precision-designed lip profiles and sealing edges ensure minimal friction while maintaining consistent pressure distribution, reducing stick-slip effects and improving responsiveness.
– **Robust Construction**: Reinforced backings and anti-extrusion rings prevent seal deformation under high pressure (up to 500 bar or higher in some applications), even in pulsating or shock-load scenarios.
– **Contamination Resistance**: Integrated wipers and scrapers in rod seal systems protect hydraulic cylinders from particulate ingress, extending component life.

### **Performance Advantages**
SKF seals enhance system performance through:

– **Leak-Free Operation**: Advanced sealing lips and dynamic sealing surfaces minimize fluid loss, maintaining hydraulic efficiency and reducing environmental impact.
– **Durability**: Engineered to withstand abrasive conditions, SKF seals outperform standard seals in lifespan, reducing downtime and maintenance costs.
– **Energy Efficiency**: Low-friction designs lower power consumption in hydraulic systems, contributing to sustainability goals.
– **Versatility**: Suitable for reciprocating, rotary, and static applications across industries.

### **Typical Applications**
SKF hydraulic and piston seals are trusted in critical applications, including:

– **Industrial Machinery**: Hydraulic presses, injection molding machines, and CNC equipment requiring precision motion control.
– **Mobile Hydraulics**: Excavators, loaders, and agricultural machinery operating under variable loads and harsh environments.
– **Automotive Systems**: Brake cylinders, power steering units, and suspension components demanding reliability and safety.
– **Precision Equipment**: Aerospace actuators and medical hydraulic systems where failure is not an option.

By integrating SKF seals into hydraulic systems, engineers and maintenance teams achieve enhanced reliability, reduced total cost of ownership, and compliance with industry standards. Whether for OEM designs or aftermarket replacements, SKF’s sealing solutions represent the forefront of performance-driven engineering.

For more details on material specifications, custom configurations, or application support, explore SKF’s technical resources or consult with their engineering team.

MORE +
CLOSE +
Designation Cylinder bore diameter Piston groove diameter Piston groove width Primary sealing element Mass
MD 60X44X18.4-L
60.0 mm
44.0 mm
18.4 mm
Nitrile Rubber (N80/047)
0.0348 kg
MD 70X55X20-L
70.0 mm
55.0 mm
20.0 mm
Nitrile Rubber (N80/047)
0.0392 kg
MD 75X55X22.4-L
75.0 mm
55.0 mm
22.4 mm
Nitrile Rubber (N80/047)
0.0648 kg
MD 80X62X22.5-L
80.0 mm
62.0 mm
22.5 mm
Nitrile Rubber (N80/047)
0.0561 kg
MD 80X65X20-L
80.0 mm
65.0 mm
20.0 mm
Nitrile Rubber (N80/047)
0.0462 kg
MD 95X75X22.4-L
95.0 mm
75.0 mm
22.4 mm
Nitrile Rubber (N80/047)
0.0838 kg
MPV-100X79X8.1
100.0 mm
79.0 mm
8.1 mm
Polyurethane (X-ECOPUR PS)
0.0273 kg
MPV-80X59X8.1
80.0 mm
59.0 mm
8.1 mm
Polyurethane (X-ECOPUR PS)
0.0212 kg
SCP1-2000-E5D
50.8 mm
37.13 mm
7.16 mm
Polyamide (PA P-2551)
0.0297 kg
SCP2-3000-E5D
76.2 mm
62.03 mm
7.16 mm
Polyamide (PA P-2551)
0.0358 kg
SCP2-3000-E5E
76.2 mm
62.03 mm
7.16 mm
Polyamide (PA P-2501)
0.0131 kg
SCP2-3500-E5D
88.9 mm
74.73 mm
7.16 mm
Polyamide (PA P-2551)
0.0337 kg
SCP2-3500-E5E
88.9 mm
74.73 mm
7.16 mm
Polyamide (PA P-2501)
0.0156 kg
SCP2-4250-E5D
107.95 mm
93.78 mm
7.16 mm
Polyamide (PA P-2551)
0.0364 kg
LPV 32X24.5X3.2
32.0 mm
24.5 mm
3.2 mm
Polyurethane (ECOPUR PT 54D)
0.012 kg
LPV 55X44X4.2
55.0 mm
44.0 mm
4.2 mm
Polyurethane (ECOPUR PT 54D)
0.004 kg
LPV 65X54X4.2
65.0 mm
54.0 mm
4.2 mm
Polyurethane (ECOPUR PT 54D)
0.0045 kg
LPV 80X64.5X6.3
80.0 mm
64.5 mm
6.3 mm
Polyurethane (ECOPUR PT 54D)
0.0125 kg
LTP-210-E3R
25.4 mm
19.25 mm
4.75 mm
Nitrile Rubber (NBR A-8501)
0.0005 kg
LTP-326-E3R
50.8 mm
41.4 mm
7.14 mm
Nitrile Rubber (NBR A-8501)
0.0056 kg
LTP-330-E3R
63.5 mm
54.1 mm
7.14 mm
Nitrile Rubber (NBR A-8501)
0.0072 kg
LTP-338-E3R
88.9 mm
79.5 mm
7.14 mm
Nitrile Rubber (NBR A-8501)
0.0101 kg
LTP-341-E3R
98.43 mm
89.03 mm
7.14 mm
Nitrile Rubber (NBR A-8501)
0.011 kg
MD 100X80X25-L
100.0 mm
80.0 mm
25.0 mm
Nitrile Rubber (N80/047)
0.0949 kg