Radial shaft seals

Seals Product Introduction

**Introduction to SKF Radial Shaft Seals: Engineered for Performance and Reliability**

In demanding industrial environments, effective sealing solutions are critical to protecting rotating shafts from contamination, retaining lubricants, and ensuring long-term equipment reliability. SKF radial shaft seals are precision-engineered components designed to meet these challenges, offering superior performance across a wide range of applications—from heavy-duty industrial machinery to high-speed automotive systems and precision equipment.

### **Technical Features & Design Excellence**
SKF radial shaft seals combine advanced materials, innovative design, and rigorous manufacturing standards to deliver exceptional sealing efficiency. Key features include:

– **Robust Material Options**: SKF seals utilize high-quality elastomers (such as NBR, FKM, and ACM) and reinforced polymers, ensuring compatibility with diverse operating conditions, including extreme temperatures, aggressive chemicals, and high-pressure environments.
– **Optimized Lip Geometry**: The sealing lip is precision-designed to maintain consistent contact with the shaft, minimizing friction while effectively excluding contaminants like dust, water, and abrasive particles.
– **Enhanced Sealing Technologies**: Many SKF seals incorporate auxiliary lips, spring-loaded designs, or hydrodynamic wave patterns to improve sealing performance under dynamic conditions, reducing wear and extending service life.
– **Integrated Metal Casings**: For added durability, SKF seals often feature robust metal casings that provide structural stability and secure fitment in housings, even under vibration or misalignment.

### **Performance Advantages**
SKF radial shaft seals are trusted in critical applications due to their ability to:

– **Extend Bearing & Component Life**: By preventing lubricant leakage and blocking contaminants, SKF seals reduce wear on shafts and bearings, lowering maintenance costs and downtime.
– **Operate in Harsh Conditions**: Whether in high-speed motors, off-road vehicles, or food processing equipment, SKF seals maintain integrity under thermal cycling, chemical exposure, and mechanical stress.
– **Improve Energy Efficiency**: Low-friction designs minimize power loss, contributing to energy savings in pumps, compressors, and electric motors.

### **Typical Applications**
SKF radial shaft seals are widely used in industries where reliability is non-negotiable:

– **Industrial Machinery**: Pumps, gearboxes, conveyors, and electric motors benefit from SKF seals’ ability to handle heavy loads and harsh environments.
– **Automotive Systems**: From wheel hubs to transmission shafts, SKF seals ensure leak-free performance in passenger vehicles, commercial trucks, and off-highway equipment.
– **Precision Equipment**: Medical devices, robotics, and aerospace applications rely on SKF’s high-precision seals for smooth, contamination-free operation.

By integrating cutting-edge materials, intelligent design, and rigorous testing, SKF radial shaft seals set the benchmark for sealing solutions—delivering unmatched durability, efficiency, and protection across industries. Whether for OEMs or maintenance applications, SKF seals help engineers and operators achieve peak performance while reducing total cost of ownership.

For more details on selecting the right seal for your application, explore SKF’s comprehensive portfolio of radial shaft sealing solutions.

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Designation Shaft diameter Housing bore diameter Housing groove width Seal width Limiting speed Sealing lip material Mass
260X305X22 HDS2 V
260.0 mm
305.0 mm
22.0 mm
1836.0 r/min
Fluoro rubber (FKM)
1.05 kg
2612563
663.58 mm
714.38 mm
22.23 mm
720.0 r/min
Fluoro rubber (FKM)
3.83 kg
26177
66.68 mm
88.9 mm
9.53 mm
8160.0 r/min
Fluoro rubber (FKM)
0.0453 kg
26186
66.675 mm
88.9 mm
9.53 mm
2580.0 r/min
Nitrile rubber (NBR)
0.054 kg
26191
66.675 mm
88.9 mm
11.13 mm
4800.0 r/min
Polyacrylate elastomer (ACM)
0.0476 kg
26208
66.68 mm
92.02 mm
11.13 mm
8160.0 r/min
Fluoro rubber (FKM)
0.0816 kg
2632-2832-56 HS8 V
673.1 mm
723.9 mm
22.23 mm
284.0 r/min
Fluoro rubber (FKM)
1.29 kg
26346
66.675 mm
99.974 mm
11.13 mm
2580.0 r/min
Nitrile rubber (NBR)
0.102 kg
26354
66.675 mm
101.68 mm
9.53 mm
2580.0 r/min
Nitrile rubber (NBR)
0.0635 kg
2650X2714X25 HSS4 R
2650.0 mm
2714.0 mm
25.0 mm
108.0 r/min
Nitrile rubber (NBR)
7.03 kg
265X300X20 HSS8 R
265.0 mm
300.0 mm
20.0 mm
721.0 r/min
Nitrile rubber (NBR)
0.32 kg
26921
68.275 mm
98.45 mm
11.13 mm
2520.0 r/min
Nitrile rubber (NBR)
0.0953 kg
2693612
684.23 mm
736.6 mm
19.05 mm
419.0 r/min
Nitrile rubber (NBR)
3.95 kg
25X42X8 CRW1 V
25.0 mm
42.0 mm
8.0 mm
13320.0 r/min
Fluoro rubber (FKM)
0.0113 kg
25X45X7 HMS5 RG
25.0 mm
45.0 mm
7.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0123 kg
25X45X7 HMS5 V
25.0 mm
45.0 mm
7.0 mm
13320.0 r/min
Fluoro rubber (FKM)
0.0142 kg
25X45X8 HMS5 V
25.0 mm
45.0 mm
8.0 mm
13320.0 r/min
Fluoro rubber (FKM)
0.0147 kg
25X46X7 HMS5 RG
25.0 mm
46.0 mm
7.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0134 kg
25X47X7 HMS5 RG
25.0 mm
47.0 mm
7.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0135 kg
25X48X8 CRW1 V
25.0 mm
48.0 mm
8.0 mm
13320.0 r/min
Fluoro rubber (FKM)
0.019 kg
25X50X10 HMS5 V
25.0 mm
50.0 mm
10.0 mm
13320.0 r/min
Fluoro rubber (FKM)
0.0227 kg
25X50X10 HMSA10 V
25.0 mm
50.0 mm
10.0 mm
13320.0 r/min
Fluoro rubber (FKM)
0.0219 kg
25X50X8 CRW1 R
25.0 mm
50.0 mm
8.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0158 kg
25X52X10 HMSA10 RG
25.0 mm
52.0 mm
10.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0216 kg