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
260X290X16 HMS5 RG
260.0 mm
290.0 mm
16.0 mm
900.0 r/min
Nitrile rubber (NBR)
0.374 kg
260X290X16 HMSA10 V
260.0 mm
290.0 mm
16.0 mm
2820.0 r/min
Fluoro rubber (FKM)
0.419 kg
260X300X20 HDS1 R
260.0 mm
300.0 mm
20.0 mm
1102.0 r/min
Nitrile rubber (NBR)
0.83 kg
260X300X20 HDS2 D
260.0 mm
300.0 mm
20.0 mm
1102.0 r/min
Carboxylated nitrile rubber (XNBR)
0.84 kg
26122
66.68 mm
85.09 mm
9.53 mm
8160.0 r/min
Fluoro rubber (FKM)
0.039 kg
2613562
663.58 mm
714.38 mm
22.23 mm
432.0 r/min
Nitrile rubber (NBR)
3.83 kg
26190
66.675 mm
88.9 mm
11.13 mm
2580.0 r/min
Nitrile rubber (NBR)
0.0703 kg
26194
66.675 mm
89.992 mm
11.13 mm
2580.0 r/min
Nitrile rubber (NBR)
0.0748 kg
26204
66.68 mm
92.02 mm
9.53 mm
8160.0 r/min
Fluoro rubber (FKM)
0.0503 kg
26310
66.675 mm
96.85 mm
10.54 mm
728.0 r/min
Nitrile rubber (NBR)
0.0998 kg
26359
66.675 mm
110.998 mm
11.13 mm
2580.0 r/min
Nitrile rubber (NBR)
0.138 kg
2638480
669.93 mm
717.55 mm
22.23 mm
428.0 r/min
Nitrile rubber (NBR)
2.72 kg
2650253
673.1 mm
711.2 mm
19.05 mm
426.0 r/min
Carboxylated nitrile rubber (XNBR)
5.34 kg
25713
65.1 mm
95.275 mm
11.13 mm
2640.0 r/min
Nitrile rubber (NBR)
0.0907 kg
25714
65.1 mm
95.275 mm
11.13 mm
2640.0 r/min
Nitrile rubber (NBR)
0.0907 kg
25745
65.1 mm
98.374 mm
11.13 mm
2640.0 r/min
Nitrile rubber (NBR)
0.102 kg
25748
65.1 mm
98.45 mm
11.13 mm
2640.0 r/min
Nitrile rubber (NBR)
0.102 kg
25X32X7 CRSA1 R
25.0 mm
32.0 mm
7.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0049 kg
25X35X4 HM4 R
25.0 mm
35.0 mm
4.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0045 kg
25X35X6 HMS5 V
25.0 mm
35.0 mm
6.0 mm
13320.0 r/min
Fluoro rubber (FKM)
0.0057 kg
25X35X7 CRW1 R
25.0 mm
35.0 mm
7.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0068 kg
25X37X5 HMSA10 V
25.0 mm
37.0 mm
5.0 mm
13320.0 r/min
Fluoro rubber (FKM)
0.0068 kg
25X38X7 HMSA10 V
25.0 mm
38.0 mm
7.0 mm
13320.0 r/min
Fluoro rubber (FKM)
0.0091 kg
25X40X10 HMS5 RG
25.0 mm
40.0 mm
10.0 mm
3840.0 r/min
Nitrile rubber (NBR)
0.0122 kg