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
G 22X28X4
22.0 mm
28.0 mm
4.0 mm
8681.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.00179 kg
G 25X33X4
25.0 mm
33.0 mm
4.0 mm
7639.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.00248 kg
G 28X37X4
28.0 mm
37.0 mm
4.0 mm
6821.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.00308 kg
G 42X52X4
42.0 mm
52.0 mm
4.0 mm
4547.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.0047 kg
G 5X10X2 S
5.0 mm
10.0 mm
2.0 mm
38197.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.00022 kg
G 70X78X5
70.0 mm
78.0 mm
5.0 mm
2728.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.009 kg
PER.POS12194TC
0.049 kg
SD 15X21X3
15.0 mm
21.0 mm
3.0 mm
12732.0 r/min
Polyurethane (AU)
0.001 kg
SD 37X47X4
37.0 mm
47.0 mm
4.0 mm
5162.0 r/min
Polyurethane (AU)
0.0027 kg
600X650X22 HSS5 H
600.0 mm
650.0 mm
22.0 mm
414.0 r/min
Hydrogenated nitrile rubber (HNBR)
1.13 kg
60X90X8 HMS5 RG3
60.0 mm
90.0 mm
8.0 mm
Nitrile rubber (NBR)
0.042 kg
SD 40X52X5
40.0 mm
52.0 mm
5.0 mm
4775.0 r/min
Polyurethane (AU)
0.0044 kg
680X744X25 HDS2 R
680.0 mm
744.0 mm
25.0 mm
421.0 r/min
Nitrile rubber (NBR)
4.29 kg
1180X1244X25 HDS2 R
1180.0 mm
1244.0 mm
25.0 mm
243.0 r/min
Nitrile rubber (NBR)
3.18 kg
80X100X10 HMSA10 RG3
80.0 mm
100.0 mm
10.0 mm
Nitrile rubber (NBR)
0.046 kg
1200X1264X22.2 HDS2 R
1200.0 mm
1264.0 mm
22.2 mm
239.0 r/min
Nitrile rubber (NBR)
6.62 kg
G 15X23X3
15.0 mm
23.0 mm
3.0 mm
12732.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.00127 kg
1650780
419.1 mm
482.6 mm
25.4 mm
684.0 r/min
Nitrile rubber (NBR)
2.59 kg
G 16X22X3
16.0 mm
22.0 mm
3.0 mm
11937.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.00128 kg
25X32X7 CRSA12 R
25.0 mm
32.0 mm
7.0 mm
Nitrile rubber (NBR)
0.0054 kg