rotary oil seal with double lip and all covered rubber which is TF Type

Widely used in automobiles, mechanical equipment, engineering machinery and other fields, especially suitable for occasions requiring good sealing performance and wear resistance.
According to different use medium, pressure and temperature, choose different materials. Common materials include: TF type skeleton oil seal made of NBR, TF type skeleton oil seal made of Viton, TF type skeleton oil seal made of Silicone rubber, etc.

TF type oil seal, often called full-coverage rubber oil seal, is a commonly used sealing component, which is widely used in various mechanical equipment. The following is a detailed introduction of TF type oil seal, including structure, working principle and characteristics:

1. Structure
   • All-inclusive rubber material: The main feature of TF type oil seal is that it is made entirely of rubber material. The entire oil seal structure is rubber, which includes the sealing lip, outer ring and skeleton. The all-inclusive rubber design provides uniform sealing effect and high flexibility.
   • Sealing Lip: The sealing lip is the key part of the TF type oil seal and is in direct contact with the shaft surface. It is made of elastic rubber and can form an effective seal when the shaft rotates.
   • Outer ring: The outer ring of a TF type oil seal is also made of rubber material, which usually has a certain degree of elasticity and plasticity. The design of the outer ring allows the seal to fit snugly in the housing or shell, preventing displacement.
   • Skeleton optional: Although TF type oil seals are primarily of all-rubber construction, in some cases they may contain a built-in metal skeleton or reinforcing layer for increased strength and stability of the seal.
2. Working Principle
   • Sealing lip contact: The sealing lip of TF type oil seal is in close contact with the surface of the rotating shaft, through which a sealing surface is formed to prevent the leakage of lubricant, liquid or contaminants.
   • Elasticity and Pressure: The elasticity of the rubber material allows the sealing lip to be tightly attached to the shaft surface and maintains the sealing effect even if the shaft undergoes slight vibration or deformation.
   • Fully encapsulated design: The fully encapsulated rubber design not only provides good sealing performance, but also allows the oil seal to have good abrasion resistance and adaptability. The flexibility of the rubber can adapt to the thermal expansion and vibration of the shaft.
3. Features
   • Excellent sealing performance: The design of the fully encapsulated rubber ensures the sealing performance of the oil seal under a wide range of operating conditions, effectively preventing lubricant leakage and the entry of external contaminants.
   • Wide temperature adaptability: The rubber material of TF type oil seal usually has good temperature adaptability and can work normally in the range of -30°C to +100°C (the specific temperature range depends on the type of rubber material).
   • Good abrasion resistance: the abrasion resistance of the rubber material makes TF type oil seals maintain good sealing performance in long-term use, prolonging the service life.
   • Flexibility and adaptability: The all-rubber construction provides good flexibility to adapt to slight vibration and deformation of the shaft, ensuring continuous sealing effect.
   • Easy to install: Due to the flexibility of the all-rubber design, Type TF oil seals are generally easy to install and are suitable for a wide range of standard shaft sizes and shapes.

rotary double lip oil seal