Bearing seals are devices used to prevent the internal lubricant of the bearing from leaking and external contaminants from entering. According to the different ways of contact, bearing seals can be divided into contact and non-contact two types, take you together to understand the different types of bearing seals.1 Contact bearing seals:

Contact seals are sealing structures in which the sealing enclosure has direct contact with the contact surface on the shaft or bearing. It is usually made of rubber or elastic material, and produces a friction sealing effect by contacting the contact surface on the shaft or bearing. Contact sealing ring has good sealing performance, but due to the direct contact will cause a certain amount of friction loss and heat generation, so it is suitable for low and medium-speed operating conditions.

Applications:

Contact bearing seals are widely used in a variety of bearing systems, such as: automobile engines, industrial machinery and equipment, electric motors and so on. Their main function is to prevent lubricant leakage and external contaminants from entering the bearing system, ensuring normal operation and prolonging the service life of the bearings.

Features:

Good sealing effect: the friction contact between contact seal and shaft or shell can form a good sealing effect, effectively preventing lubricant leakage and external contaminants from intruding.

Simple and easy to use: contact seals are easy to install, usually only need to put the seal on the shaft or housing, without additional complex installation steps.

Strong adaptability: Contact seals are suitable for shafts and housings of different sizes and shapes, and are highly adaptable and versatile.

Low maintenance costs: contact seals have a long service life and low maintenance costs, and generally only require periodic inspection and replacement.

Non-contact bearing seals:

A non-contact seal is a sealing structure in which there is no direct contact between the seal and the contact surface on the shaft or bearing. It usually uses a gap formed by a medium such as air, liquid or gas to realize the sealing effect. Non-contact seals have low friction loss and heat generation and are suitable for high speed operating conditions.

Applications: Non-contact bearing seals are widely used in a variety of rotating mechanical equipment, such as motors, fans, pumps, and so on. It can be used to seal a variety of liquid and gaseous media, and is suitable for high-speed rotation and high-temperature environment bearing system.

Features:

(1) Reduce friction and wear: non-contact bearing seals are not in direct contact with the bearings, which reduces the friction and wear of the bearings and prolongs the service life of the bearings.

(2) Prevent external impurities from entering: the seal forms a closed space, effectively preventing external impurities such as dust, moisture, oil dust, etc. from entering the bearing system and protecting the normal operation of the bearings.

(3) Prevent lubricant leakage: non-contact bearing seals can effectively prevent lubricant leakage, maintain the lubrication state of the bearings and improve the working efficiency of the bearings.

(4) Reduce energy consumption: Due to the reduction of friction and wear, non-contact bearing seals can reduce energy consumption and improve the energy efficiency of the bearing system.