Sealing Excellence, Securing Industry

CFKS TC Rubber Oil Seal 42*55*10 FKM TC Skeleton Oil Seal Double Lip Shaft Seal

The CFKS FKM TC Skeleton Oil Seal 42*55*10 is a premium-grade, double-lip rotary shaft seal designed to deliver exceptional sealing integrity in demanding thermal and chemical environments. Featuring a precision-engineered auxiliary lip, it effectively locks in lubricants while blocking external contaminants, ensuring continuous system uptime.

  • Dual-Lip Protection: Primary sealing lip retains vital lubricants while the dust lip repels external contaminants.

  • Superior Thermal Range: FKM construction withstands extreme heat and aggressive chemical media.

  • Structural Integrity: Internal steel skeleton ensures a rigid, secure press-fit within the housing bore.

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

Product Name CFKS FKM TC Skeleton Oil Seal Specification 42*55*10
Material FKM / Steel Case Feature High-Temperature & Corrosion Resistant
Work Temperature -20℃ to 220℃ Hardness 70-75 Shore A
Type Double Lip with Garter Spring (TC) Usage Gearboxes, Pumps, Electric Motors, Axles

 

The TC profile operates on a sophisticated dynamic sealing mechanism. The primary sealing lip is energized by an internal garter spring, which exerts a precise radial force on the rotating shaft. This force maintains a microscopic hydrodynamic oil film between the FKM lip and the shaft surface, minimizing friction while preventing fluid migration. Simultaneously, the centrifugal force generated by the shaft’s rotation assists the secondary auxiliary lip in deflecting external dust, moisture, and debris away from the primary sealing zone.

Material selection is critical when dealing with aggressive lubricants and elevated operational temperatures. While standard NBR degrades rapidly under high thermal stress, our premium FKM compound offers outstanding chemical inertness. It resists swelling and hardening when exposed to synthetic oils, hydraulic fluids, and ozone. This superior chemical stability guarantees that the elastomeric seal lip retains its flexibility and sealing force, drastically extending the mean time between failures in harsh industrial environments.

Maximizing the service life of the CFKS skeleton oil seal depends heavily on proper installation and minimizing initial wear. The external rubber-covered O.D. compensates for thermal expansion in the housing, preventing damage during press-fitting. Thanks to the low-friction characteristics of our FKM compound, the seal minimizes parasitic power loss and runs cooler, translating to a low-maintenance operation and eliminating the need for frequent, costly shaft teardowns.

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
TC/TG TYPE SEAL SIZE LIST
No.Product NameTypeSIZEColorMaterial
1Rubber Oil SealTC / TGTC 10*18*5Black/BrownNBR/VITON
2Rubber Oil SealTC / TGTC 10*19*5Black/BrownNBR/VITON
3Rubber Oil SealTC / TGTC 10*20*7Black/BrownNBR/VITON
4Rubber Oil SealTC / TGTC 12*19*5Black/BrownNBR/VITON
5Rubber Oil SealTC / TGTC 12*22*7Black/BrownNBR/VITON
6Rubber Oil SealTC / TGTC 15*24*7Black/BrownNBR/VITON
7Rubber Oil SealTC / TGTC 15*28*5Black/BrownNBR/VITON
8Rubber Oil SealTC / TGTC 15*30*7Black/BrownNBR/VITON
9Rubber Oil SealTC / TGTC 16*24*7Black/BrownNBR/VITON
10Rubber Oil SealTC / TGTC 17*35*5Black/BrownNBR/VITON
11Rubber Oil SealTC / TGTC 19*32*7Black/BrownNBR/VITON
12Rubber Oil SealTC / TGTC 20*45*7Black/BrownNBR/VITON
13Rubber Oil SealTC / TGTC 20*47*7Black/BrownNBR/VITON
14Rubber Oil SealTC / TGTC 20*52*7Black/BrownNBR/VITON
15Rubber Oil SealTC / TGTC 22*35*5Black/BrownNBR/VITON
16Rubber Oil SealTC / TGTC 22*35*7Black/BrownNBR/VITON
17Rubber Oil SealTC / TGTC 22*47*7Black/BrownNBR/VITON
18Rubber Oil SealTC / TGTC 24*42*7Black/BrownNBR/VITON
19Rubber Oil SealTC / TGTC 25*37*5Black/BrownNBR/VITON
20Rubber Oil SealTC / TGTC 25*46*7Black/BrownNBR/VITON
21Rubber Oil SealTC / TGTC 25*52*7Black/BrownNBR/VITON
22Rubber Oil SealTC / TGTC 28*40*10Black/BrownNBR/VITON
23Rubber Oil SealTC / TGTC 28*47*10Black/BrownNBR/VITON
24Rubber Oil SealTC / TGTC 30*52*10Black/BrownNBR/VITON
25Rubber Oil SealTC / TGTC 30*58*10Black/BrownNBR/VITON
26Rubber Oil SealTC / TGTC 30*60*10Black/BrownNBR/VITON
27Rubber Oil SealTC / TGTC 30*62*7Black/BrownNBR/VITON
28Rubber Oil SealTC / TGTC 32*45*10Black/BrownNBR/VITON
29Rubber Oil SealTC / TGTC 35*47*7Black/BrownNBR/VITON
30Rubber Oil SealTC / TGTC 35*50*7Black/BrownNBR/VITON
31Rubber Oil SealTC / TGTC 35*62*10Black/BrownNBR/VITON
32Rubber Oil SealTC / TGTC 35*72*12Black/BrownNBR/VITON
33Rubber Oil SealTC / TGTC 38*52*10Black/BrownNBR/VITON
34Rubber Oil SealTC / TGTC 40*52*8Black/BrownNBR/VITON
35Rubber Oil SealTC / TGTC 40*55*8Black/BrownNBR/VITON
36Rubber Oil SealTC / TGTC 40*58*8Black/BrownNBR/VITON
37Rubber Oil SealTC / TGTC 40*62*10Black/BrownNBR/VITON
38Rubber Oil SealTC / TGTC 40*65*10Black/BrownNBR/VITON
39Rubber Oil SealTC / TGTC 40*72*10Black/BrownNBR/VITON
40Rubber Oil SealTC / TGTC 40*75*10Black/BrownNBR/VITON
41Rubber Oil SealTC / TGTC 42*62*10Black/BrownNBR/VITON
42Rubber Oil SealTC / TGTC 42*72*10Black/BrownNBR/VITON
43Rubber Oil SealTC / TGTC 45*60*8*Black/BrownNBR/VITON
44Rubber Oil SealTC / TGTC 45*62*8Black/BrownNBR/VITON

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