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
37525
95.25 mm
126.97 mm
9.53 mm
2100.0 r/min
Nitrile rubber (NBR)
0.0812 kg
360X400X18 HSS6 R
360.0 mm
400.0 mm
18.0 mm
531.0 r/min
Nitrile rubber (NBR)
0.3 kg
360X400X20 HDS1 H
360.0 mm
400.0 mm
20.0 mm
1061.0 r/min
Hydrogenated nitrile rubber (HNBR)
1.13 kg
360X400X20 HFS R
360.0 mm
400.0 mm
20.0 mm
795.8 r/min
Nitrile rubber (NBR)
0.54 kg
360X400X20 HMS5 RG
360.0 mm
400.0 mm
20.0 mm
637.0 r/min
Nitrile rubber (NBR)
0.789 kg
360X400X20 HMS5 V
360.0 mm
400.0 mm
20.0 mm
2016.0 r/min
Fluoro rubber (FKM)
0.873 kg
360X400X20 HS7 R
360.0 mm
400.0 mm
20.0 mm
398.0 r/min
Nitrile rubber (NBR)
1.29 kg
360X400X20 HS8 R
360.0 mm
400.0 mm
20.0 mm
531.0 r/min
Nitrile rubber (NBR)
0.57 kg
360X404X20 HS5 R
360.0 mm
404.0 mm
20.0 mm
690.0 r/min
Nitrile rubber (NBR)
0.55 kg
360X405X25 HS8 H
360.0 mm
405.0 mm
25.0 mm
531.0 r/min
Hydrogenated nitrile rubber (HNBR)
1.2 kg
360X420X25 HDS1 R
360.0 mm
420.0 mm
25.0 mm
796.0 r/min
Nitrile rubber (NBR)
2.17 kg
36158
92.075 mm
111.15 mm
9.53 mm
3960.0 r/min
Polyacrylate elastomer (ACM)
0.0734 kg
36166
92.075 mm
114.33 mm
9.53 mm
2160.0 r/min
Nitrile rubber (NBR)
0.0599 kg
36172
92.075 mm
114.3 mm
7.468 mm
527.0 r/min
Nitrile rubber (NBR)
0.0476 kg
3621
9.53 mm
14.3 mm
2.39 mm
2220.0 r/min
Nitrile rubber (NBR)
0.0091 kg
36359
92.08 mm
126.97 mm
9.53 mm
6660.0 r/min
Fluoro rubber (FKM)
0.0857 kg
36361
92.075 mm
126.97 mm
9.53 mm
2160.0 r/min
Nitrile rubber (NBR)
0.0839 kg
36364
92.075 mm
126.97 mm
11.13 mm
2160.0 r/min
Nitrile rubber (NBR)
0.141 kg
36382
92.075 mm
133.38 mm
9.53 mm
2160.0 r/min
Nitrile rubber (NBR)
0.0997 kg
365X405X18 HDS2 V
365.0 mm
405.0 mm
18.0 mm
1308.0 r/min
Fluoro rubber (FKM)
1.04 kg
36X46X9 CRS1 R
36.0 mm
46.0 mm
9.0 mm
3480.0 r/min
Nitrile rubber (NBR)
0.0136 kg
35X50X10 HMS5 V
35.0 mm
50.0 mm
10.0 mm
11580.0 r/min
Fluoro rubber (FKM)
0.0182 kg
35X50X10 HMSA10 RG
35.0 mm
50.0 mm
10.0 mm
3480.0 r/min
Nitrile rubber (NBR)
0.0161 kg
35X50X8 HMS5 RG
35.0 mm
50.0 mm
8.0 mm
3480.0 r/min
Nitrile rubber (NBR)
0.0142 kg