The main causes of cracking rubber soft joints include the following:

      1. Material reasons: The use of inferior materials will lead to insufficient tensile resistance of rubber soft joints, and it is easy to tensile rupture during use. For example, the use of low-quality second-hand recycled rubber or rubber materials with low rubber content can affect its stability
      2. Installation reason: Improper installation is also a common cause of cracking. For example, the ball was not inflated and adjusted before installation, or was not connected correctly, causing the ball to break due to excessive pressure. In addition, the strength of the joint is lower, and if the riveting method is not accurate, the strength of the joint will be lower, which can lead to cracking.
      3. Environmental reasons: Harsh environmental conditions will affect the stability of rubber soft joints. Environmental factors such as high temperatures, high pressures, and corrosive gases can cause rubber soft joint balls to rupture. Long-term exposure to harsh environments such as ultraviolet rays and ozone can harden and deform, resulting in cracks.
      4. Processing and manufacturing defects: Problems in the processing process, such as insufficient length of connecting rod and slow vulcanization speed, will cause the joint to break easily during use. In addition, defects in the manufacturing process, such as bubbles, cracks, and impurities, can cause local stresses to exceed the rear strength, resulting in crack propagation.

Prevention and treatment:
1. Replace high-quality materials: Choose high-quality rubber materials and avoid using inferior or recycled materials
2. Improve the environment: Avoid installing rubber soft joints in extreme temperatures, high pressures, or corrosive environments.
3. Regular inspection and maintenance: Regularly check the status of rubber soft joints, find problems in time and repair or replace.