Rubber back up ring is a commonly used rubber product, widely used in various industries. Its main function is to provide support, buffering and protection, and can be used in mechanical equipment, automobiles, electronic products and other fields. Below is a detailed introduction to the rubber back support ring.
1. Material of Rubber back up ring
Rubber back support rings are usually made of rubber materials. Common rubber materials include natural rubber, styrene-butadiene rubber, nitrile rubber, etc. These rubber materials have good elasticity and wear resistance and can withstand certain pressure and extrusion deformation.
2. structure
Rubber backing rings are usually ring-shaped and have a hollow interior. Its outer diameter, inner diameter and thickness can be designed and manufactured according to specific usage requirements. The surface of the rubber backing ring is usually smooth and flat to facilitate a tight connection with other components.
3. Function
- Support function: The rubber back up ring can provide support and is used to support and fix other components to ensure the stability and normal operation of the entire device.
- Buffering function: Due to the good elasticity of the rubber material, the rubber back support ring can absorb and alleviate the impact and vibration from the outside, reducing damage and wear to other components.
- Protection function: The rubber backing ring can play a protective role, preventing direct contact and wear between other components and extending the service life.
- Sealing function: The rubber backing ring has a certain degree of elasticity and plasticity, which can form a sealing effect at the connection to prevent the leakage of liquids, gases, etc.
4. Application areas of Rubber back up rings
Rubber backing rings are widely used in various industries, mainly including the following fields:
- Mechanical equipment: Rubber backing rings are often used for connecting and supporting components of mechanical equipment, such as bearings, gears, couplings, etc., to play a buffering and protective role.
- Automotive industry: Rubber backrest rings are used in automobile engines, suspension systems, braking systems and other components to absorb and reduce vibration and noise, improving ride comfort and safety.
- Electronic products: Rubber backing rings are often used to connect and fix components of electronic products, such as circuit boards, batteries, etc., which can play a buffering, supporting and anti-slip role.
- Chemical industry: Rubber backing rings are used in pipeline connections, valve seals and other parts to prevent liquid and gas leakage and ensure the safety and reliability of the process.
Support ring suitable model
Here are some examples of common rubber backing rings available:
- Bearing support ring: used to support the installation and fixation of bearings. Common models include 6204, 6205, 6306, etc.
- Pump support ring: used for pump installation and support. Common models include 50-125, 50-160, 65-200, etc.
- Motor support ring: used for fixing and supporting the motor. Common models include 80-90, 90-100, 100-112, etc.
- Mechanical equipment support ring: used for the connection and support of mechanical equipment. Common models vary according to the specific equipment, such as the size and specifications of bearings, gears and other components.
The Rubber back up rings are generally combined with primary seals (or O’Rings) and are used to help the O’Rings resist the effects of extrusion. A back-up ring is required for increased pressures or significant extrusion gaps in the system. Several types of back-up rings are available – concave, single spire, double spire – cut or uncut – in rubber, PTFE, POM and PA, among others.
An anti-extrusion ring (also called a push ring) is a ring-shaped device used to prevent the sealing element from being extruded and deformed in high-pressure or high-temperature environments. It is usually made of metal materials, such as stainless steel, copper alloy or other high temperature and corrosion resistant materials.
The main function of the anti-extrusion ring is to provide additional support and limitation around sealing components (such as O-rings, sealing gaskets, etc.) to prevent them from being squeezed or deformed under high pressure. It is usually installed on both sides of the sealing element to provide additional support and limiting force by pressing it between the sealing elements.
Anti-crush rings and back support rings are often used together. They can work together in some applications to provide better sealing and mechanical support.
The back-up rings are generally combined with primary seals (or O’Rings) and are used to help the O’Rings resist the effects of extrusion.
Rubber backing rings are mainly used to provide support, cushioning and protection functions, and are usually installed on the back of the sealing element to enhance its mechanical stability and durability. It prevents sealing elements from being deformed or damaged when exposed to external forces or pressures.
Anti-extrusion rings are mainly used to prevent sealing components from being extruded and deformed in high-pressure or high-temperature environments. It is usually installed on both sides of the sealing element to ensure the reliability of the seal by providing additional support and limiting force to prevent the sealing element from being squeezed or deformed under high pressure.
Therefore, in some applications, a combination of rubber backing rings and anti-extrusion rings may provide better results. The backing ring provides mechanical support and protection, while the anti-extrusion ring provides additional limiting and anti-extrusion functions, jointly ensuring the reliability and sealing effect of the sealing system.
