What Is TB Rubber Oil Seal?

TB Rubber Oil Seal is a high-performance rotary shaft seal with a double-lip structure, which is widely used to prevent lubricating oil leakage and external impurities such as dust, sand, and water vapor from invading bearings or machinery. It is a commonly used oil seal structure in the industrial and automotive fields.

Structural features:

T = Double Lip: indicates double lip design, including main lip (seal grease) and auxiliary lip (dust and pollution prevention)

B = Rubber Covered: indicates that the shell is a full rubber-covered structure, the outer ring is covered with rubber, the installation is more stable, and the seal is more reliable

Generally with a metal skeleton to enhance the overall strength

Can be equipped with a spring to improve the fit of the shaft lip

Common material choices:

NBR (nitrile rubber): suitable for normal temperature, lubricating oil, hydraulic oil and other environments

FKM (fluororubber): suitable for high temperature, high speed, strong corrosive environment

Application areas:

Automobile engines, gearboxes, wheel hub systems

Industrial gearboxes, reduction motors

Rotary shaft seals for agricultural machinery and engineering machinery

Sealing components such as water pumps, motors, compressors, etc.

✅ Advantages of TB oil seals:

Double lip structure effectively improves sealing performance and extends equipment life

Outer rubber design has stronger adaptability and can be used for slightly eccentric or rough hole inner wall

Easy to install, good corrosion resistance, suitable for a variety of complex working conditions

Conclusion:

TB type rubber oil seal is one of the most commonly used and practical seals on the market. It has both leak-proof and dust-proof functions and is one of the first choices for automotive and industrial equipment sealing solutions. Jinwoseal can provide a variety of sizes and materials to meet the sealing needs of different customers.

For more models or customized services, please contact our technical team!