Sealing Excellence, Securing Industry

CFKS NBR/FKM TC Double Lip Rotary Shaft Seal 48*62*15 High Temperature TC Skeleton Oil Seal

Engineered for heavy-duty industrial machinery, the CFKS TC Double Lip Rotary Shaft Seal (48*62*15mm) features a premium elastomer sealing element bonded to a rigid steel internal skeleton. Equipped with a primary sealing lip with a garter spring and an auxiliary dust lip, it delivers superior dynamic sealing efficiency and fluid retention under high operational velocities and broad temperature ranges.

  • Dual-Lip Protection: Primary spring-loaded lip maintains precise radial force to retain lubricants, while the dust lip excludes external dirt, water, and contaminants.

  • Reinforced Skeleton Structure: Integrated metal inner case maintains dimensional stability and prevents seal distortion under press-fit mounting.

  • Premium Elastomer Versatility: Available in standard NBR for oil resistance or FKM for high-temperature and aggressive chemical applications.

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

Product Name CFKS TC Double Lip Rotary Shaft Seal Specification 48*62*15 mm (Custom sizes supported)
Material Premium NBR / FKM / PU Fluorinated Rubber Feature High Temperature & High Wear Resistance
Work Temperature -20℃ to 220℃ Usage Gearboxes, Pumps, Electric Motors, Axles, Automotive Transmissions
Hardness 70 – 75 Shore A Type TC Skeleton Oil Seal (Double Lip with Garter Spring)

 

 

The CFKS TC type oil seal operates as a dynamic radial shaft seal designed to isolate fluids and exclude contaminants in rotating equipment. The primary sealing lip utilizes an integrated metal garter spring that exerts continuous, controlled radial pressure against the rotating shaft interface. This mechanical force maintains a micro-thin hydrodynamic oil film essential for friction reduction and thermal dissipation. Simultaneously, the auxiliary outer lip acts as a secondary protective barrier, shielding the main lip zone from abrasives, dust, and moisture to ensure zero leakage and dynamic stability at elevated shaft speeds.

Selecting the proper elastomer formulation is critical for long-term operational integrity. The default NBR option excels in standard mineral oils, greases, and hydraulic fluids, delivering exceptional wear resistance across ambient to moderate heat conditions. For extreme operating environments, the FKM variant provides superior resistance to aggressive synthetic lubricants, fluids, and high thermal stress. The high chemical inertness and anti-aging properties of FKM minimize elastomer degradation, preventing hardening, cracking, and lip wear under harsh thermal cycles.

Achieving maximum seal service life requires precise installation and proper housing pre-treatment. Prior to mounting, inspect the shaft surface for burrs, scoring, or misalignment; the shaft surface hardness should ideally meet ≥ 45 HRC with a surface roughness of Ra 0.2–0.6 µm. Lubricate the seal lips and shaft journal with clean system fluid before press-fitting. Always utilize a flat driver tool that applies uniform pressure directly to the outer steel skeleton edge to avoid cocking the seal in the housing bore. Due to its low-friction lip design and drop-in fit dimension (48*62*15 mm), the seal reduces downtime during routine overhauls.

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

MESSAGE

Go to Top