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
300X340X18 HDS1 V
300.0 mm
340.0 mm
18.0 mm
18.0 mm
1592.0 r/min
Fluoro rubber (FKM)
1.04 kg
300X340X20 HDS2 R
300.0 mm
340.0 mm
20.0 mm
955.0 r/min
Nitrile rubber (NBR)
0.959 kg
300X340X20 HMS5 V
300.0 mm
340.0 mm
20.0 mm
2400.0 r/min
Fluoro rubber (FKM)
0.655 kg
300X340X20 HMSA10 V
300.0 mm
340.0 mm
20.0 mm
2400.0 r/min
Fluoro rubber (FKM)
0.66 kg
300X340X20 HSS6 V
300.0 mm
340.0 mm
20.0 mm
637.0 r/min
Fluoro rubber (FKM)
0.42 kg
300X350X27 HDS2 R
300.0 mm
350.0 mm
27.0 mm
955.0 r/min
Nitrile rubber (NBR)
1.65 kg
3025660
768.35 mm
825.5 mm
22.23 mm
373.0 r/min
Nitrile rubber (NBR)
4.42 kg
3050514
774.7 mm
825.5 mm
22.23 mm
616.0 r/min
Fluoro rubber (FKM)
4.42 kg
30X37X4 HM4 R
30.0 mm
37.0 mm
4.0 mm
3660.0 r/min
Nitrile rubber (NBR)
0.0045 kg
28X42X8 HMS5 V
28.0 mm
42.0 mm
8.0 mm
12720.0 r/min
Fluoro rubber (FKM)
0.0113 kg
28X42X8 HMSA10 V
28.0 mm
42.0 mm
8.0 mm
12720.0 r/min
Fluoro rubber (FKM)
0.0115 kg
28X44X6 HMS5 V
28.0 mm
44.0 mm
6.0 mm
12720.0 r/min
Fluoro rubber (FKM)
0.0118 kg
28X44X6 HMSA10 RG
28.0 mm
44.0 mm
6.0 mm
3720.0 r/min
Nitrile rubber (NBR)
0.0098 kg
28X47X10 HMSA10 V
28.0 mm
47.0 mm
10.0 mm
12720.0 r/min
Fluoro rubber (FKM)
0.0178 kg
28X47X7 HMS5 RG
28.0 mm
47.0 mm
7.0 mm
3720.0 r/min
Nitrile rubber (NBR)
0.0141 kg
28X52X10 HMSA10 RG
28.0 mm
52.0 mm
10.0 mm
3720.0 r/min
Nitrile rubber (NBR)
0.0203 kg
28X52X7 HMS5 RG
28.0 mm
52.0 mm
7.0 mm
3720.0 r/min
Nitrile rubber (NBR)
0.0156 kg
28X52X8 CRW1 R
28.0 mm
52.0 mm
8.0 mm
3720.0 r/min
Nitrile rubber (NBR)
0.0158 kg
28X72X10 HMS5 RG
28.0 mm
72.0 mm
10.0 mm
3720.0 r/min
Nitrile rubber (NBR)
0.039 kg
28X72X10 HMSA10 RG
28.0 mm
72.0 mm
10.0 mm
3720.0 r/min
Nitrile rubber (NBR)
0.0398 kg
2900556
736.6 mm
787.4 mm
20.65 mm
194.0 r/min
Fluoro rubber (FKM)
1.31 kg
290X330X18 HDS2 R
290.0 mm
330.0 mm
18.0 mm
988.0 r/min
Nitrile rubber (NBR)
0.84 kg
290X330X18 HS8 R
290.0 mm
330.0 mm
18.0 mm
659.0 r/min
Nitrile rubber (NBR)
0.884 kg
290X330X20 HDS1 V
290.0 mm
330.0 mm
20.0 mm
1646.0 r/min
Fluoro rubber (FKM)
0.92 kg