Sealing Excellence, Securing Industry

CFKS Customized FKM TA Rotary Oil Seal 120*150 TA Skeleton Oil Seal TA Rubber Seal

The CFKS TA Rotary Oil Seal is a premium-engineered, metal-cased skeleton seal designed for high-velocity rotating shafts. Featuring a specialized rubber-covered double-lip configuration and a reinforced inner case, it delivers superior structural rigidness and fluid retention under extreme thermal and mechanical loads.

  • FKM Thermal Resilience: Engineered with premium fluorocarbon rubber to withstand corrosive fluids and high operating temperatures.

  • Double-Lip Contaminant Barrier: The secondary hydrodynamic lip acts as an aggressive dust shield to protect the primary sealing zone.

  • Customized Precision Fit: Engineered to exact specifications (120 *150mm baseline) with fully customizable outer diameters and widths.

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

Product Name CFKS TA Rotary Oil Seal Specification 120*150
Material Premium FKM / NBR / PU Feature High Wear Resistance & High-Temp Proof
Work Temperature -20℃ to 220℃  Hardness 70 – 75 Shore A
Type TA Double Lip Skeleton Seal Usage Industrial Gearboxes, Hydraulic Pumps, Electric Motors, Heavy-Duty Axles, Rotary Compressors, Paper Mill Rollers

 

The TA type skeleton oil seal operates on a precise dynamic sealing principle engineered for high-velocity rotary shafts. Unlike standard single-metal-case seals, the TA design features an inner metal cage that provides maximum structural stability, preventing housing deformation under elevated pressures. The primary sealing lip uses a calculated radial force, optimized by a high-tensile stainless steel garter spring, to maintain a microscopic lubricant film at the shaft interface. This controlled boundary layer uses centrifugal force to pump migrating fluids back into the oil reservoir while preventing localized frictional heat spikes.

 

Operational reliability in severe environments depends completely on matching the elastomer compound to the chemical and thermal matrix of the application. By utilizing premium FKM, this TA seal offers exceptional resistance to synthetic lubricants, petroleum oils, and aggressive chemical media that rapidly degrade standard NBR. FKM maintains its long-term lip flexibility and sealing profile at continuous operating temperatures where baseline polymers suffer thermal cross-linking and hardening, drastically reducing the risk of premature cracking and oil leakage.

Minimizing industrial downtime requires heavy-duty sealing components that streamline field service. The TA rubber-covered outer diameter provides superior static sealing within the housing bore, effectively compensating for minor thermal expansion or surface roughness in the housing itself. This eliminates the risk of bypass leakage along the outer shell. The optimized lip geometry ensures a low-friction break-in phase, reducing initial shaft grooving and drastically extending the MTBF for high-duty cycle equipment.

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
TA Oil Seal Size List
SIZEMaterialCore Application
35*52*10NBRCentrifugal Pumps & Transmission Shafts
40*62*12NBRHydraulic Pumps & Agricultural Machinery
45*65*12NBRIndustrial Reducers & Conveyor Systems
50*72*12NBR/FKMIndustrial Fan & Blower Assemblies
55*80*12NBRTractor Drive Axles & Power Take-Offs
60*85*12NBRWater Treatment Pumps & Mixers
65*90*12NBRMarine Propulsion & Stern Drive Systems
70*95*13NBR/FKMConstruction Machinery Wheel Hubs
75*100*12NBRHeavy-Duty Industrial Gearboxes
80*105*13NBR/FKMTruck Axle Repair & Drivetrains
85*110*13NBRMetal Rolling Mill Equipment
90*115*13NBRExcavator Final Drives & Travel Motors
95*120*13NBRPulp & Paper Processing Machinery
100*125*13NBR/FKMMining Conveyor Roller Assemblies
105*135*14NBRChemical Processing Pumps & Agitators
110*140*14NBR/FKMAgricultural Harvester Transmissions
115*145*14NBRHeavy-Duty Earthmoving Equipment
120*150*15NBR/FKMIndustrial Ventilation & Cooling Units
125*155*15NBRSteel Production Line Rollers
130*160*15NBR/FKMCement & Concrete Mixing Plants
135*165*15NBRShip Engine Crankshaft Seals
140*170*15NBR/FKMLarge Bore Hydraulic Cylinders
145*175*15NBRWind Turbine Main Shaft Bearings
150*180*15NBR/FKMQuarrying Machinery & Stone Crushers
155*185*15NBRRubber & Plastic Extrusion Lines
160*190*16NBR/FKMHeavy Cargo Winches & Hoists
165*195*16NBRLarge Gear Drives for Industrial Mills
170*200*16NBR/FKMMarine Dredging & Salvage Equipment
175*210*16NBRPetroleum Refining & Driller Machinery
180*210*16NBR/FKMThermal Power Generation Turbines
185*220*16NBRWastewater Aerator Drive Systems
190*225*16NBR/FKMMining Shovel & Dragline Components
195*230*16NBRHeavy Steel Casting & Forging Machines
200*240*18NBR/FKMSugar Mill Roller Drive Shafts
210*250*18NBR/FKMTunnel Boring Machine (TBM) Cutters
220*260*18NBRLarge Marine Propeller Shaft Seals
230*270*18NBR/FKMPort Handling & Container Cranes
240*280*20NBRHydroelectric Power Station Valves
250*290*20NBR/FKMLarge-Scale Industrial Air Compressors
260*300*20NBRHeavy Forging Presses & Hammers
270*310*20NBR/FKMMining Excavator Chassis & Axles

 

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