Sealing Excellence, Securing Industry

CFKS Cassette Oil Seal 35*52*16 Cassette Seal Radial Shaft Seal

The CFKS 35*52*16 Cassette Oil Seal is a sophisticated, multi-lip sealing solution designed for rotating shafts operating in extreme environments. Unlike standard radial seals, this integrated unit features an internal wear sleeve, eliminating the need for specialized shaft hardening and ensuring a pristine sealing surface regardless of shaft condition.

  • Integrated Wear Sleeve: Eliminates shaft grooving and reduces maintenance costs during replacement.

  • Multi-Lip Contamination Exclusion: Specialized labyrinth design blocks mud, water, and grit.

  • Pre-Greased System: Internal cavities are factory-lubricated to minimize friction and thermal buildup from day one. Find your sealing solution with CFKS — contact us for a quote.

Brand Name CFKS OEM  Accpetable
Material NBR FKM Silicone  Features  wear resistance
Dimensions Customized Certificate  ISO9001/TS16949
Type Cassette Seal  Packing 1 pc per bag

 

The Cassette Oil Seal functions as a self-contained sealing module. While standard seals rely on the shaft surface as a counter-face, the CFKS design moves the primary sealing contact to an internal, precision-ground sleeve. This axial-radial hybrid movement allows the seal to handle higher centrifugal forces and significant shaft run-out without compromising the oil film. By isolating the sealing interface from the external environment, the internal labyrinth structure effectively “traps” contaminants before they reach the primary sealing lip.

 

Material integrity is non-negotiable in heavy-duty applications. Our standard NBR (Nitrile) compounds offer excellent resistance to hydraulic oils and grease, performing reliably between -40°C and +100°C. For high-speed or high-temperature applications involving synthetic lubricants, we utilize FKM (Viton). FKM’s superior chemical resistance ensures that the elastomer maintains its “memory” and lip pressure even when exposed to aggressive additives, significantly extending the Mean Time Between Failures (MTBF).

One of the primary engineering advantages of the 35*52*16 Cassette Seal is its “unitized” construction. Because the wear sleeve is part of the assembly, there is no requirement for shaft refinishing or grinding during a seal change. This is critical for field maintenance where precision machining isn’t an option. The seal is pressed into the housing as a single unit, ensuring that the internal sealing lips are perfectly aligned and protected from damage during the installation process.

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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