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
3050892
774.7 mm
850.9 mm
25.4 mm
370.0 r/min
Nitrile rubber (NBR)
4.56 kg
32392
82.55 mm
107.92 mm
9.53 mm
7140.0 r/min
Fluoro rubber (FKM)
0.0635 kg
330X390X28 HDS2 R
330.0 mm
390.0 mm
28.0 mm
868.0 r/min
Nitrile rubber (NBR)
1.96 kg
35X52X6 HMSA7P2 V
35.0 mm
52.0 mm
6.0 mm
Fluoro rubber (FKM)
0.018 kg
40X55X7 HMS5 RG3
40.0 mm
55.0 mm
7.0 mm
3300.0 r/min
Nitrile rubber (NBR)
0.0135 kg
40X55X7 HMSA10 RG3
40.0 mm
55.0 mm
7.0 mm
3300.0 r/min
Nitrile Rubber (NBR)
0.0135 kg
480X540X20 HDS2 R
480.0 mm
540.0 mm
20.0 mm
597.0 r/min
Nitrile rubber (NBR)
2.31 kg
500X540X20 HFS R
500.0 mm
540.0 mm
20.0 mm
573.0 r/min
Nitrile rubber (NBR)
0.74 kg
600X650X22 HSS5 H
600.0 mm
650.0 mm
22.0 mm
414.0 r/min
Hydrogenated nitrile rubber (HNBR)
1.13 kg
4975833
1263.65 mm
1333.5 mm
25.4 mm
227.0 r/min
Nitrile rubber (NBR)
9.87 kg
SD 40X47X4
40.0 mm
47.0 mm
4.0 mm
4775.0 r/min
Polyurethane (AU)
0.003 kg
510X570X25 HDS1 R
510.0 mm
570.0 mm
25.0 mm
562.0 r/min
Nitrile rubber (NBR)
3.0 kg
580X640X25 HDS1 R
580.0 mm
640.0 mm
25.0 mm
494.0 r/min
Nitrile rubber (NBR)
3.39 kg
60X90X8 HMSA10 RG3K
60.0 mm
90.0 mm
8.0 mm
Nitrile rubber (NBR)
0.0514 kg
700X764X25 HDS1 R
700.0 mm
764.0 mm
25.0 mm
409.0 r/min
Nitrile rubber (NBR)
4.37 kg
70X90X10 HMSA10 RG3
70.0 mm
90.0 mm
10.0 mm
2520.0 r/min
Nitrile Rubber (NBR)
0.1 kg
710X774X25 HDS2 R
710.0 mm
774.0 mm
25.0 mm
403.0 r/min
Nitrile rubber (NBR)
4.47 kg
955X1019X25 HDS1 R
955.0 mm
1019.0 mm
25.0 mm
300.0 r/min
Nitrile rubber (NBR)
5.96 kg
G 24X32X4
24.0 mm
32.0 mm
4.0 mm
7958.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.00245 kg
G 26X34X4
26.0 mm
34.0 mm
4.0 mm
7346.0 r/min
Acrylonitrile-butadiene rubber (NBR)
0.00264 kg