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
12X28X7 CRW1 P
12.0 mm
28.0 mm
7.0 mm
14640.0 r/min
Polyacrylate elastomer (ACM)
0.0068 kg
12X28X7 HMSA10 RG
12.0 mm
28.0 mm
7.0 mm
3240.0 r/min
Nitrile rubber (NBR)
0.0052 kg
12X30X7 HMS5 V
12.0 mm
30.0 mm
7.0 mm
14626.0 r/min
Fluoro rubber (FKM)
0.007 kg
12X32X7 CRW1 R
12.0 mm
32.0 mm
7.0 mm
3240.0 r/min
Nitrile rubber (NBR)
0.0068 kg
12X35X7 CRW1 R
12.0 mm
35.0 mm
7.0 mm
3240.0 r/min
Nitrile rubber (NBR)
0.009 kg
12X37X7 HMSA10 RG
12.0 mm
37.0 mm
7.0 mm
3240.0 r/min
Nitrile rubber (NBR)
0.0091 kg
12X37X7 HMSA10 V
12.0 mm
37.0 mm
7.0 mm
14626.0 r/min
Fluoro rubber (FKM)
0.0103 kg
1300-1416-40 HS8 V
330.2 mm
361.95 mm
15.88 mm
578.0 r/min
Fluoro rubber (FKM)
0.29 kg
1300244
330.2 mm
368.3 mm
17.48 mm
868.0 r/min
Nitrile rubber (NBR)
1.24 kg
1300252
330.2 mm
368.3 mm
19.05 mm
868.0 r/min
Nitrile rubber (NBR)
0.95 kg
1300548
330.2 mm
381.0 mm
19.05 mm
578.0 r/min
Nitrile rubber (NBR)
0.654 kg
1300573
330.2 mm
381.0 mm
23.83 mm
1446.0 r/min
Fluoro rubber (FKM)
2.26 kg
1300582
330.2 mm
381.0 mm
25.4 mm
1446.0 r/min
Fluoro rubber (FKM)
2.26 kg
13021
33.35 mm
46.431 mm
9.53 mm
6540.0 r/min
Polyacrylate elastomer (ACM)
0.0113 kg
13052
33.35 mm
52.375 mm
7.95 mm
3540.0 r/min
Nitrile rubber (NBR)
0.0159 kg
130X160X12 HMS5 V
130.0 mm
160.0 mm
12.0 mm
5280.0 r/min
Fluoro rubber (FKM)
0.132 kg
130X160X12 HMSA10 V
130.0 mm
160.0 mm
12.0 mm
5280.0 r/min
Fluoro rubber (FKM)
0.132 kg
1256250
319.1 mm
357.2 mm
19.05 mm
898.0 r/min
Nitrile rubber (NBR)
2.13 kg
12565
50.267 mm
53.975 mm
6.35 mm
2986.0 r/min
Nitrile rubber (NBR)
0.0154 kg
12590
31.344 mm
57.15 mm
6.35 mm
3600.0 r/min
Nitrile rubber (NBR)
0.0159 kg
125X150X12 HMSA10 RG
125.0 mm
150.0 mm
12.0 mm
1740.0 r/min
Nitrile rubber (NBR)
0.102 kg
125X160X12 CRW1 R
125.0 mm
160.0 mm
12.0 mm
1740.0 r/min
Nitrile rubber (NBR)
0.12 kg
125X160X15 HMS5 V
125.0 mm
160.0 mm
15.0 mm
5400.0 r/min
Fluoro rubber (FKM)
0.158 kg
125X160X15 HMSA10 RG
125.0 mm
160.0 mm
15.0 mm
1765.0 r/min
Nitrile rubber (NBR)
0.14 kg