Sealing Excellence, Securing Industry

CFKS Cassette Oil Seal 150*180*14.5/16 NBR FKM Rubber Cassette Rotary Shaft Seal Axle Oil Seal

  • The Cassette Oil Seal 150*180*14.5/16 is a multi-lip, fully integrated rotary shaft seal engineered specifically for heavy-duty axles operating under severe environmental contamination. Combining an internal sleeve, multiple sealing lips, and an integrated dirt deflector into a single unit, this axle seal eliminates shaft wear while providing unparalleled protection against mud, water, and slurry.

    • Zero Shaft Wear: The internal sealing lips run exclusively against a pre-lubricated internal sleeve surface, completely eliminating the need for expensive shaft hardening or regrinding.

    • Multi-Stage Exclusion: Integrated labyrinth lips block heavy debris and environmental contaminants before they can reach the primary sealing element.

    • Pre-Lubricated Durability: Factory-filled with high-performance grease between the lips to drastically reduce friction, minimize heat generation, and extend service life.

    Find your sealing solution with CFKS — contact us for a quote.

Product Name Cassette Oil Seal  Specification 150*180*14.5/16mm
Material Premium NBR / High-Performance FKM Feature Heavy-duty mud/slurry exclusion, Wear resistance
Work Temperature -20℃ to 220℃  Hardness 70 – 75 Shore A
Type Unitized Rotary Shaft Wheel Hub Seal Usage Tractor axles, wheel hubs, construction machinery, agricultural gearboxes, heavy-duty trucks

 

 The CFKS cassette seal operates as a completely enclosed unit. The relative movement does not occur between the elastomer lip and the rotating shaft surface, but rather internally between the integrated sealing lips and a specialized inner counterface sleeve. This unique axial and radial labyrinth geometry creates a tortuous path for external contaminants. Centrifugal force generated during rotation actively flings mud and water away from the primary sealing lip, drastically reducing abrasive wear and ensuring absolute oil retention even in high-puckering structural flex conditions.

 

Material selection is optimized based on operating temperature, peripheral speed, and fluid compatibility. For standard, highly cost-effective heavy-duty machinery operations, NBR offers exceptional resistance to mineral oils, hydraulic fluids, and mechanical abrasion within a standard thermal window. For severe high-speed, high-temperature, or synthetic lubricant applications, FKM is utilized. FKM exhibits superior chemical inertness, resisting thermal degradation and maintaining lip flexibility when exposed to aggressive gear oils and extreme frictional heat.

The pre-assembled, unitized design of the 15018014.5/16 cassette seal drastically simplifies installation. Because the internal counterface is self-contained, technicians do not need to worry about shaft finish roughness or shaft hardness requirements during replacement. The seal is pressed into the housing bore in a single operation. Maintenance intervals are significantly extended because the primary sealing lip is completely isolated from external environmental hazards, ensuring a low-friction, leak-free operational life.

Frequently Asked Questions (FAQ)

Why does my CFKS oil seal fail prematurely? Common causes and prevention tips2025-06-26T15:44:39+08:00

Premature oil seal failure can result from improper installation, poor shaft finish, incorrect material selection, or excessive pressure. To prevent this, ensure the shaft surface is smooth and within tolerance, use correct tools during installation, and choose seals made from materials compatible with your media and temperature.

How to correctly install a CFKS industrial oil seal to avoid leakage2025-06-26T16:04:32+08:00

Always clean the shaft and bore before installation. Use appropriate seal drivers to avoid deformation. Lubricate the lip before fitting to reduce friction during the first rotation. Ensure the seal is seated evenly and not tilted to avoid leaks.

What to do when your CFKS hydraulic seal is leaking under pressure2025-05-20T16:33:14+08:00

Check if the pressure exceeds the seal’s rated limit. Examine for wear, hardening, or improper installation. Replace the seal if damaged, and consider upgrading to a high-pressure CFKS seal variant. Also, verify that the housing and shaft are properly aligned.

How to choose the right CFKS oil seal for extreme operating environments2025-05-20T16:34:39+08:00

For high temperatures, aggressive chemicals, or abrasive environments, choose CFKS seals made of FKM, PTFE, or high-performance elastomers. Consider using seals with protective dust lips or metal casing. Our team can recommend the best fit for your application.

CFKS Seal Manufacturing Co.,Ltd.
https://cfksseals.com/
Email:cfksnacy@gmail.com Mobile/WhatsApp/Wechat:(86)188-3097-5917
CASSETTE Oil Seal Size List
SIZEMaterialTYPE
35*52*16NBR+AUCOMBI
35*52*17/18.5NBR+AUCOMBI SF
40*55*15.5NBR+AUCOMBI SF6
37*52*14.6NBR+AUCOMBI SF6
42*62*17NBR+AUCOMBI SF1
45*60*16/17NBR+AUCOMBI SF
45*62*19NBR+AUCOMBI SF20
45*65*18.5NBR+AUCOMBI SF6
60*75*17.5/18.5NBRCOMBI
55*80*11NBR+AUCOMBI
56*80*13/14.5NBRRWDR-KASSETTE
50*65*18NBR+AUCOMBI SF8
46*65*21NBR+AURWDR-COMBI
65*92*10/15NBR+VITONRWDR-CASSETTE
75*100*13/14.5NBRRWDR-CASSETTE-2
85*110*13/14.5NBR+VITONRWDR-CASSETTE-3
127*160*15.5/17.5NBRRWDR-CASSETTE-3
130*160*14.5/16NBRRWDR-CASSETTE-3
140*170*14.5/16NBRRWDR-KASSETTE-2
145*189*15.5/17NBRCASSETTE
120*160*15/17.5NBRRWDR-K7 KASSETTE
121.8*150*13/15NBRRWDR-K7 KASSETTE
145*175*14.5/15.5NBRRWDR-K7 KASSETTE
165*190*15.5/17NBRRWDR-CASSETTE-2
210*240*14.5/18NBRRWDR-CASSETTE-3
167.8*198*13/15.5NBRRWDR-CASSETTE-3
190*215*15.5/17NBRRWDR-CASSETTE-2
150*180*14.5/16NBR+VITONRWDR-CASSETTE-2
189.8*230*15.5/17NBRCASSETTE-S3
170*200*15/16NBR+VITONRWDR-K7
120*150*14/15.5NBRKASSETTE
130*155*12.5/16NBRKASSETTE
190*220*16/18NBRRWDR-KASSETTE
147*170*15.5/16NBRKASSETTE
110*140*14.5/16NBRRWDR-KASSETTE
32*51*9 NBRGNB1W11

 

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