Sealing Excellence, Securing Industry

CFKS TA Oil Seal 54*70*7/9.5 High Temperature FKM TA Skeleton Oil Seal Double Steel Case

Tired of premature lubricant leaks in high-temp gearboxes? The CFKS FKM TA oil seal provides reinforced dual-cage protection up to 220°C. Request a quote today!

Product Short Description: Engineered for severe-duty rotary applications, the CFKS TA 54*70*7/9.5 skeleton oil seal combines high-grade FKM lip material with an inner-outer double steel cage. This heavy-duty construction maintains strict radial lip sealing force even under high thermal expansion and intense housing pressure differentials.

  • Heavy-Duty Double Steel Case: Reinforced inner cage prevents bore deflection and ensures structural integrity during press-fit installation.

  • FKM Elastomer Lip: Superior resistance to synthetic lubricants, dynamic friction heat, and operating temperatures up to 220°C.

  • Dual-Lip Exclusion Geometry: Primary sealing lip retains fluid, while the secondary dust lip shields the assembly from ingress of abrasives.

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

Product Name CFKS TA Oil Seal  Specification 54*70*7/9.5 mm (Custom sizes supported)
Material Premium FKM / NBR / PU optional Feature High Temperature, Wear Resistance, Double Steel Case
Work Temperature -20℃ to 220℃ (FKM Grade) Usage Gearboxes, Hydraulic Motors, Axles, Pumps, Reducers, Heavy Machinery
Hardness 70–80 Shore A Type TA Double Steel Case Skeleton Rotary Oil Seal

 

The TA profile relies on dynamic interference sealing coupled with centrifugal flinging effects along the axial interface. Featuring an outer steel shell paired with an inner reinforcing cap, the double-case architecture guarantees precise static retention in the housing bore without the risk of spring-back or axial displacement. As the shaft rotates, centrifugal force aids in slinging external contaminants away from the primary lip, while a garter spring maintains continuous radial contact pressure across fluctuating shaft speeds to eliminate fluid bypass.

Selecting the appropriate elastomer compound dictates long-term sealing efficiency under aggressive thermal and chemical stress. Standard NBR serves well in lower-temperature hydraulic systems, but high-velocity industrial drives demand the advanced polymer backbone of FKM. FKM maintains elastomeric memory and crack resistance up to 220°C, offering exceptional compatibility with aggressive synthetic oils, ATF fuels, and high-pressure lubricants where lower-tier materials suffer thermal degradation and lip hardening.

Improper press-fitting is the primary cause of seal lip failure; the heavy-duty TA double-case design directly mitigates this vulnerability by providing superior structural rigidity during alignment. Because the inner metal sheath absorbs installation driving loads, the seal installs cleanly into raw housing bores without distortion. This rigidity reduces shaft frictional torque and prevents radial deformation, maximizing running life and minimizing unscheduled downtime without requiring complex housing modifications or 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
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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