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
27362
69.85 mm
95.275 mm
11.13 mm
2520.0 r/min
Nitrile rubber (NBR)
0.0535 kg
27426
69.85 mm
95.631 mm
11.13 mm
2520.0 r/min
Nitrile rubber (NBR)
0.0816 kg
27471
69.85 mm
98.45 mm
11.13 mm
2520.0 r/min
Nitrile rubber (NBR)
0.105 kg
2750564
698.5 mm
749.3 mm
22.23 mm
410.0 r/min
Nitrile rubber (NBR)
4.01 kg
275X315X20 HSS5 R
275.0 mm
315.0 mm
20.0 mm
903.0 r/min
Nitrile rubber (NBR)
0.39 kg
27601
69.85 mm
107.92 mm
11.13 mm
4680.0 r/min
Polyacrylate elastomer (ACM)
0.12 kg
2763250
701.68 mm
739.78 mm
19.05 mm
408.0 r/min
Nitrile rubber (NBR)
1.94 kg
2763470
701.68 mm
749.3 mm
19.05 mm
408.0 r/min
Nitrile rubber (NBR)
2.44 kg
278X312X16 HS8 R
278.0 mm
312.0 mm
16.0 mm
687.0 r/min
Nitrile rubber (NBR)
0.299 kg
279X310X16 HS8 R
279.0 mm
310.0 mm
16.0 mm
685.0 r/min
Nitrile rubber (NBR)
0.27 kg
27X37X7 HMSA10 RG
27.0 mm
37.0 mm
7.0 mm
3780.0 r/min
Nitrile rubber (NBR)
0.0064 kg
27X37X7 HMSA10 V
27.0 mm
37.0 mm
7.0 mm
12960.0 r/min
Fluoro rubber (FKM)
0.0067 kg
27X42X10 HMS5 RG
27.0 mm
42.0 mm
10.0 mm
3780.0 r/min
Nitrile rubber (NBR)
0.0116 kg
26289
66.675 mm
95.275 mm
18.16 mm
728.0 r/min
Nitrile rubber (NBR)
0.12 kg
26298
66.675 mm
95.275 mm
11.13 mm
2580.0 r/min
Nitrile rubber (NBR)
0.0885 kg
26328
66.675 mm
98.45 mm
11.13 mm
2580.0 r/min
Nitrile rubber (NBR)
0.0997 kg
2637118
669.93 mm
701.73 mm
15.88 mm
285.0 r/min
Nitrile rubber (NBR)
0.57 kg
264.8X300X20 HDS1 R
264.8 mm
300.0 mm
20.0 mm
20.0 mm
1082.0 r/min
Nitrile rubber (NBR)
1.59 kg
2650250
673.1 mm
711.2 mm
19.05 mm
426.0 r/min
Nitrile rubber (NBR)
1.88 kg
2650254
673.1 mm
711.2 mm
19.05 mm
709.0 r/min
Fluoro rubber (FKM)
4.72 kg
2650283
673.1 mm
711.2 mm
19.05 mm
709.0 r/min
Fluoro rubber (FKM)
4.72 kg
265X300X20 HDS2 R
265.0 mm
300.0 mm
20.0 mm
1081.0 r/min
Nitrile rubber (NBR)
0.74 kg
2680X2744X25 HSS4 H
2680.0 mm
2744.0 mm
25.0 mm
107.0 r/min
Hydrogenated nitrile rubber (HNBR)
8.44 kg
26X37X7 HMS5 RG
26.0 mm
37.0 mm
7.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0073 kg