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
6597
16.99 mm
39.954 mm
7.137 mm
14717.0 r/min
Fluoro rubber (FKM)
0.0113 kg
620X684X25 HSS4 V
620.0 mm
684.0 mm
25.0 mm
462.0 r/min
Fluoro rubber (FKM)
1.95 kg
6243
15.85 mm
28.727 mm
4.775 mm
3832.0 r/min
Nitrile rubber (NBR)
0.0045 kg
62480
158.75 mm
184.15 mm
12.7 mm
1444.0 r/min
Nitrile rubber (NBR)
0.177 kg
6250270
1587.5 mm
1625.6 mm
22.23 mm
180.0 r/min
Nitrile rubber (NBR)
11.9 kg
6250281
1587.5 mm
1625.6 mm
22.23 mm
301.0 r/min
Fluoro rubber (FKM)
11.9 kg
625X689X25 HSS8 V
625.0 mm
689.0 mm
25.0 mm
306.0 r/min
Fluoro rubber (FKM)
1.71 kg
6285
15.88 mm
31.75 mm
7.95 mm
14834.0 r/min
Fluoro rubber (FKM)
0.009 kg
62X120X12 HMSA10 RG
62.0 mm
120.0 mm
12.0 mm
2700.0 r/min
Nitrile rubber (NBR)
0.156 kg
62X120X12 HMSA10 V
62.0 mm
120.0 mm
12.0 mm
8520.0 r/min
Fluoro rubber (FKM)
0.09 kg
62X80X10 HMSA10 RG
62.0 mm
80.0 mm
10.0 mm
2700.0 r/min
Nitrile rubber (NBR)
0.0333 kg
62X85X10 HMS5 V
62.0 mm
85.0 mm
10.0 mm
8520.0 r/min
Fluoro rubber (FKM)
0.0444 kg
62X90X10 HMS5 RG
62.0 mm
90.0 mm
10.0 mm
2700.0 r/min
Nitrile rubber (NBR)
0.0467 kg
62X90X12 HMS5 V
62.0 mm
90.0 mm
12.0 mm
8520.0 r/min
Fluoro rubber (FKM)
0.0585 kg
630X670X20 HDS1 V
630.0 mm
670.0 mm
20.0 mm
758.0 r/min
Fluoro rubber (FKM)
1.93 kg
630X670X20 HS8 V
630.0 mm
670.0 mm
20.0 mm
303.0 r/min
Fluoro rubber (FKM)
1.03 kg
630X680X25 HDS2 V
630.0 mm
680.0 mm
25.0 mm
758.0 r/min
Fluoro rubber (FKM)
3.09 kg
630X680X25 HS5 R
630.0 mm
680.0 mm
25.0 mm
394.0 r/min
Nitrile rubber (NBR)
1.34 kg
630X680X25 HSS5 H
630.0 mm
680.0 mm
25.0 mm
394.0 r/min
Hydrogenated nitrile rubber (HNBR)
2.05 kg
630X694X25 HS5 R
630.0 mm
694.0 mm
25.0 mm
394.0 r/min
Nitrile rubber (NBR)
1.98 kg
6316-6515-61 HS8 R
1606.55 mm
1656.94 mm
24.21 mm
119.0 r/min
Nitrile rubber (NBR)
3.26 kg
60X110X12 HMSA10 V
60.0 mm
110.0 mm
12.0 mm
8700.0 r/min
Fluoro rubber (FKM)
0.0896 kg
60X110X8 HMSA10 V
60.0 mm
110.0 mm
8.0 mm
8700.0 r/min
Fluoro rubber (FKM)
0.0835 kg
60X72X8 HMS5 RG
60.0 mm
72.0 mm
8.0 mm
2760.0 r/min
Nitrile rubber (NBR)
0.0208 kg