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
19210
49.225 mm
61.9 mm
6.35 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0136 kg
19212
49.225 mm
61.9 mm
6.35 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0136 kg
19219
49.225 mm
63.551 mm
7.137 mm
3015.0 r/min
Nitrile rubber (NBR)
0.0136 kg
19229
49.225 mm
66.624 mm
7.95 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0204 kg
19237
49.225 mm
68.224 mm
7.95 mm
3000.0 r/min
Nitrile rubber (NBR)
0.0199 kg
185X210X13 HMS5 V
185.0 mm
210.0 mm
13.0 mm
3900.0 r/min
Fluoro rubber (FKM)
0.178 kg
185X220X13 HS8 R
185.0 mm
220.0 mm
12.7 mm
1032.0 r/min
Nitrile rubber (NBR)
0.572 kg
18652
47.63 mm
69.85 mm
7.95 mm
9900.0 r/min
Fluoro rubber (FKM)
0.0226 kg
186X226X16 HS8 R
186.0 mm
226.0 mm
16.0 mm
1027.0 r/min
Nitrile rubber (NBR)
0.22 kg
18704
47.63 mm
70.61 mm
6.35 mm
3064.0 r/min
Nitrile rubber (NBR)
0.0227 kg
18734
47.63 mm
73.03 mm
7.95 mm
3060.0 r/min
Nitrile rubber (NBR)
0.0231 kg
1875253
476.25 mm
514.35 mm
19.05 mm
602.0 r/min
Nitrile rubber (NBR)
1.36 kg
18808
47.63 mm
76.124 mm
6.35 mm
3064.0 r/min
Nitrile rubber (NBR)
0.034 kg
18817
47.63 mm
76.2 mm
7.95 mm
3060.0 r/min
Nitrile rubber (NBR)
0.0272 kg
18818
47.63 mm
76.2 mm
7.95 mm
9900.0 r/min
Fluoro rubber (FKM)
0.0272 kg
18879
47.63 mm
79.375 mm
7.95 mm
3064.0 r/min
Nitrile rubber (NBR)
0.0318 kg
18916
47.63 mm
85.623 mm
11.13 mm
3060.0 r/min
Nitrile rubber (NBR)
0.0716 kg
18922
47.63 mm
82.525 mm
12.29 mm
3060.0 r/min
Nitrile rubber (NBR)
0.0386 kg
18926
47.63 mm
88.9 mm
11.13 mm
3060.0 r/min
Nitrile rubber (NBR)
0.0508 kg
18979
48.01 mm
73.0 mm
7.01 mm
5649.0 r/min
Polyacrylate elastomer (ACM)
0.0272 kg
18X24X3 HM4 R
18.0 mm
24.0 mm
3.0 mm
3900.0 r/min
Nitrile rubber (NBR)
0.0022 kg
18X28X7 HMS5 V
18.0 mm
28.0 mm
7.0 mm
14580.0 r/min
Fluoro rubber (FKM)
0.005 kg
18X30X6 HMSA10 V
18.0 mm
30.0 mm
6.0 mm
14580.0 r/min
Fluoro rubber (FKM)
0.0061 kg
18X30X7 CRW1 R
18.0 mm
30.0 mm
7.0 mm
3900.0 r/min
Nitrile rubber (NBR)
0.0068 kg