The core structure and materials of WXJ120-60 worm gear reducer

The core structure of WXJ120-60 worm gear reducer is composed of worm gear and worm wheel. In terms of material, the worm gear is mostly made of 45 # steel or alloy steel and heat-treated, while the worm wheel is preferably made of tin bronze. The casing is commonly made of cast iron or aluminum alloy.

The reducer is a single-stage cylindrical worm gear transmission structure, with the worm gear as the active component, usually made of 45 # steel or alloy steel (such as 20CrMnTi). The tooth surface undergoes heat treatment processes such as carburizing, quenching, or nitriding, and the hardness can reach 35-55HRC or above to improve wear resistance and fatigue strength. As a driven component, the worm gear is commonly made of tin bronze (such as ZCuSn10Pb1) as the material for the gear ring. Due to its excellent anti friction, anti bonding ability, and thermal conductivity, it is particularly suitable for high-speed and heavy-duty working conditions. The centrifugal casting process can further enhance its mechanical properties.

According to the model size and usage scenario, cast iron (used for large models to improve rigidity and vibration reduction) or aluminum alloy (used for small models to achieve lightweight and good heat dissipation) is often selected for the box body. The auxiliary components such as bearings and oil seals are all made of standard parts to ensure interchangeability and maintenance convenience.

This structural design has the characteristics of high transmission ratio, smooth operation, low noise, compact structure, and most models have self-locking function, which is suitable for mechanical equipment such as lifting, conveying, and packaging. However, due to the high sliding friction on the meshing surface, the transmission efficiency is relatively low (usually 60%~90%), and attention should be paid to lubrication and cooling management.