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
50X75X10 HMS5 RG
50.0 mm
75.0 mm
10.0 mm
3000.0 r/min
Nitrile rubber (NBR)
0.038 kg
480X530X25 HS5 R
480.0 mm
530.0 mm
25.0 mm
517.0 r/min
Nitrile rubber (NBR)
1.87 kg
480X530X25 HSS8 R
480.0 mm
530.0 mm
25.0 mm
398.0 r/min
Nitrile rubber (NBR)
1.03 kg
48X68X10 HMS5 RG
48.0 mm
68.0 mm
10.0 mm
3060.0 r/min
Nitrile rubber (NBR)
0.0259 kg
48X68X10 HMS5 V
48.0 mm
68.0 mm
10.0 mm
9840.0 r/min
Fluoro rubber (FKM)
0.0287 kg
48X68X10 HMSA10 RG
48.0 mm
68.0 mm
10.0 mm
3060.0 r/min
Nitrile rubber (NBR)
0.026 kg
48X70X10 HMS5 V
48.0 mm
70.0 mm
10.0 mm
9840.0 r/min
Fluoro rubber (FKM)
0.0319 kg
48X72X7 HMS5 V
48.0 mm
72.0 mm
7.0 mm
9840.0 r/min
Fluoro rubber (FKM)
0.0267 kg
48X72X7 HMSA10 RG
48.0 mm
72.0 mm
7.0 mm
3060.0 r/min
Nitrile rubber (NBR)
0.0243 kg
48X72X8 CRW1 R
48.0 mm
72.0 mm
8.0 mm
3060.0 r/min
Nitrile rubber (NBR)
0.022 kg
48X90X10 HMS5 RG
48.0 mm
90.0 mm
10.0 mm
3060.0 r/min
Nitrile rubber (NBR)
0.0446 kg
4911
12.7 mm
17.48 mm
2.39 mm
2520.0 r/min
Nitrile rubber (NBR)
0.0004 kg
4932
12.7 mm
22.23 mm
6.35 mm
13655.0 r/min
Fluoro rubber (FKM)
0.0022 kg
4950830
1257.3 mm
1327.15 mm
25.4 mm
228.0 r/min
Nitrile rubber (NBR)
9.83 kg
495X545X22 HSS4 R
495.0 mm
545.0 mm
22.0 mm
579.0 r/min
Nitrile rubber (NBR)
0.94 kg
4991
12.7 mm
25.37 mm
6.35 mm
13655.0 r/min
Fluoro rubber (FKM)
0.0045 kg
49927
127.0 mm
152.43 mm
12.7 mm
5340.0 r/min
Fluoro rubber (FKM)
0.172 kg
49929
127.0 mm
152.43 mm
12.7 mm
1740.0 r/min
Nitrile rubber (NBR)
0.166 kg
49984
127.0 mm
158.75 mm
12.7 mm
1740.0 r/min
Nitrile rubber (NBR)
0.123 kg
50070
127.0 mm
158.75 mm
6.35 mm
1747.0 r/min
Nitrile rubber (NBR)
0.107 kg
500X540X20 HDS1 R
500.0 mm
540.0 mm
20.0 mm
20.0 mm
573.0 r/min
Nitrile rubber (NBR)
1.82 kg
46800
119.08 mm
146.08 mm
13.005 mm
1800.0 r/min
Nitrile rubber (NBR)
0.17 kg
46X59X12 HMSA10 RG
46.0 mm
59.0 mm
12.0 mm
3120.0 r/min
Nitrile rubber (NBR)
0.0209 kg
46X65X10 HMS5 V
46.0 mm
65.0 mm
10.0 mm
10080.0 r/min
Fluoro rubber (FKM)
0.0259 kg