The wide use of valves has gradually promoted valve accessories.As we all know, the use of valves must be inseparable from the coordinated operation of internal accessories, so the quality of valve accessories is also very critical.

Today we will talk about the precautions about bevel gears.After the gear is used, it needs to be well maintained.In the case of long-term use, when the alternating stress at the dangerous section of the gear tooth root exceeds the fatigue limit of the gear material, the gear tooth fatigue fracture will occur.The fatigue fracture of gear teeth is also affected by some factors, such as improper involvement, poor assembly, poor contact of the gear teeth due to heat treatment deformation, stress concentration caused by rough machining of the tooth root (including too small fillet radius of the tooth root can also cause stress Concentration), non-metallic inclusions in the steel, heat treatment quality (such as low core hardness), accumulation results due to short-term low-speed and high-load effects during use, etc.