The role of different types of bearing seals

Bearing seal ring, a kind of bearing seal, especially the ball bearing seal ring, the ball bearing seal ring has two upwardly extending circular protrusions on one end face of the ring, and the diameter of the ball bearing seal ring is small. The inner diameter of the protrusion matches the outer diameter of the inner ring of the ball bearing, and the protrusion with a larger diameter matches the outer diameter of the ball ring of the ball bearing; the inner diameter of the sealing ring is not smaller than the inner diameter of the inner diameter of the ball bearing inner ring. It has the characteristics of preventing grease from catching fire, avoiding frequent refueling, and simple structure. Widely used in bearings.

In order to protect the bearing from dust, it is often seen that different bearing seals are used on different bearings, so that the components can make the bearing get a good sealing effect and indirectly protect the use effect and service life of the bearing. Here we will list the different shapes of bearing seals and their associated functions.

Different types and functions of bearing seals

1. The V-shaped sealing ring is an elastic rubber sealing ring acting in the axial direction, which is used as a pressureless seal of the rotating shaft. The sealing lip has good fluidity and adaptability, can compensate for large tolerances and angular deviations, can prevent the leakage of internal grease or oil, and can also prevent the intrusion of external splashing water or dust.

2. O-rings are mainly used for static sealing and reciprocating sealing. When used for rotary motion seals, limited to low speed rotary seals.

3. The V-shaped sealing ring is generally installed in the groove with a rectangular cross-section of the outer or inner circle to play a sealing role.

4. Y-type seals are widely used in reciprocating sealing devices. In addition, there is a spring tension (spring energy storage) sealing ring, which is a spring added to the PTFE sealing material, including O-shaped spring, V-shaped spring, and U-shaped spring.
5. YX type hole sealing ring Product application: used for the sealing of the piston in the reciprocating hydraulic cylinder.

6. Product use of YX-type hole retaining ring: This standard is suitable for use with YX-type sealing ring when the working pressure of the cylinder is greater than 16MPa or the cylinder is eccentrically stressed to protect the hole.

7. YX type shaft sealing ring Product application: used for sealing the piston rod in the reciprocating hydraulic cylinder.

8. Product use of YX type shaft retaining ring: This standard is applicable to the function of protecting the sealing ring when the working pressure of the cylinder is greater than 16MPa or the cylinder is eccentrically stressed.

9. Product use of O-type rubber sealing ring: The O-type rubber sealing ring in this standard is suitable for hydraulic, pneumatic systems and various mechanical equipment and components. It acts as a seal during movement.

10. Use of retaining ring products for O-ring sealing: This standard applies to the use of O-rings when the cylinder pressure is greater than 10MPa.