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
526853
201.625 mm
239.73 mm
15.47 mm
947.0 r/min
Nitrile rubber (NBR)
0.762 kg
528377
184.15 mm
209.55 mm
12.7 mm
778.0 r/min
Nitrile rubber (NBR)
0.68 kg
529065
546.1 mm
590.55 mm
19.05 mm
525.0 r/min
Nitrile rubber (NBR)
4.07 kg
529193
285.75 mm
309.58 mm
16.27 mm
668.0 r/min
Nitrile rubber (NBR)
0.222 kg
52X100X10 HMS5 RG
52.0 mm
100.0 mm
10.0 mm
2940.0 r/min
Nitrile rubber (NBR)
0.0701 kg
50X100X10 HMSA10 V
50.0 mm
100.0 mm
10.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.0734 kg
50X110X10 HMS5 RG
50.0 mm
110.0 mm
10.0 mm
3000.0 r/min
Nitrile rubber (NBR)
0.09 kg
50X110X10 HMSA10 V
50.0 mm
110.0 mm
10.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.09 kg
50X62X7 HMSA10 RG
50.0 mm
62.0 mm
7.0 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0129 kg
50X65X8 HMS5 V
50.0 mm
65.0 mm
8.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.0206 kg
50X65X8 HMSA10 RG
50.0 mm
65.0 mm
8.0 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0181 kg
50X68X7 HMS5 V
50.0 mm
68.0 mm
7.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.0243 kg
50X68X7 HMSA10 V
50.0 mm
68.0 mm
7.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.0245 kg
50X70X8 CRW1 V
50.0 mm
70.0 mm
8.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.249 kg
50X72X12 HMSA10 RG
50.0 mm
72.0 mm
12.0 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0371 kg
50X72X8 CRW1 V
50.0 mm
72.0 mm
8.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.0226 kg
50X72X8 HMSA10 RG
50.0 mm
72.0 mm
8.0 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0295 kg
50X72X8 HMSA10 V
50.0 mm
72.0 mm
8.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.027 kg
50X75X10 HMSA10 RG
50.0 mm
75.0 mm
10.0 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0363 kg
50X80X8 CRW1 V
50.0 mm
80.0 mm
8.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.0294 kg
50X80X8 HMS5 RG
50.0 mm
80.0 mm
8.0 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0316 kg
50X90X10 HMSA10 RG
50.0 mm
90.0 mm
10.0 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0588 kg
50X90X10 HMSA10 V
50.0 mm
90.0 mm
10.0 mm
9600.0 r/min
Fluoro rubber (FKM)
0.0643 kg
510X550X20 HDS1 R
510.0 mm
550.0 mm
20.0 mm
562.0 r/min
Nitrile rubber (NBR)
1.57 kg