Sealing Excellence, Securing Industry

CFKS TBV Type Skeleton Seal 55*90*7 FKM High Pressure TBV Oil Seal TBV Hydraulic Motor Seal

Engineered for high-pressure hydraulic environments, the TBV Type Skeleton Seal 55*90*7mm delivers superior fluid containment and dynamic shaft protection. Utilizing premium FKM elastomer, it withstands aggressive synthetic fluids and elevated temperatures, ensuring reliable performance where standard Nitrile seals fail.

  • High-Pressure Resistance: Reinforced skeleton design prevents lip blowout under intense hydraulic motor workloads.

  • Premium FKM Compound: Exceptional thermal stability and resistance to corrosive oils, greases, and chemicals.

  • Optimized Axial Sealing: Precision-molded sealing lip reduces friction while maintaining an airtight, leak-proof barrier.

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

Product Name TBV Skeleton Oil Seal Specification 55*90*7mm
Material FKM / Viton Feature High Pressure & Wear Resistance
Work Temperature -20℃ to 220℃ Hardness 70-75 Shore A
Type High Pressure Hydraulic Seal Usage Hydraulic motors, pumps, gearboxes, construction machinery, agricultural drives, marine propulsion.

The TBV type skeleton seal operates on an advanced axial hydrodynamic principle. Unlike conventional low-pressure lips, the TBV profile features a reinforced internal steel cage that counteracts high system pressures and centrifugal force. As the shaft rotates, the specialized lip chemistry maintains a precise elastomeric contact pressure against the axial surface. This balance creates a controlled microscopic fluid film that lubricates the interface, drastically reducing frictional heat while preventing high-pressure fluid migration.

Material integrity is paramount in severe hydraulic applications. While standard NBR suffices for general duties, this seal utilizes premium FKM. NBR suffers from premature hardening and thermal degradation when exposed to modern synthetic hydraulic oils at elevated temperatures. FKM offers superior chemical inertness, successfully resisting swelling and cracking. This material superiority ensures the seal retains its elasticity, sealing force, and structural geometry even during prolonged thermal spikes.

Maximizing equipment uptime requires sealing solutions that simplify maintenance and extend service intervals. The TBV design features a optimized lip geometry that lowers break-away friction, directly reducing shaft wear and scoring. During installation, the rigid outer skeleton allows for perfectly square seating within the housing bore without specialized, complex tooling. This ease of alignment ensures a true axial seal from day one, translating to a significantly longer operating life and extended mean time between maintenance.

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
TCV TYPE SEAL SIZE LIST
SizeTypeMaterialColor
12*30*5BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
13*19*2.5BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
14*25*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
16*30*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
17*30*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
17*30.3*8BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
17*32*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
17*35*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
17.46*28.58*5.7/6.3BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
18*30*10BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
18*30*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
18*35*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
18*35*8BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
18*35*9BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19*27*5BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19*30*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19*32*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19.5*33*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19*35*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19.5*30*6/6.5BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19*35*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19*35*8BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19*35*3/7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19*37*6.5/7.5BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
19*44.45*6.35BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
20*32*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
20*32*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
20*35*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
20*40*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
20*47*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
20*47*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
22*30*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
22*32*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
20*32*6.5/8.6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
22*35*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
22*36*10BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
22*36*7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
22*42*10BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
24*34*6.3BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
24*38*6/7BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
24*38*8BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
24*55*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
25*33*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN
25*35*6BABSL CFW / TCV OIL SEALNBR/FKMBLUE/BROWN

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