Introduction to zinc alloy bearing blocks

Zinc alloy bearing seats are alloys based on zinc and composed of other elements. The commonly added alloying elements include aluminum, copper, magnesium, cadmium, lead, titanium, and so on. Zinc based alloys have a low melting point, good fluidity, and are easy to melt, solder, and plastic process. They are resistant to corrosion in the atmosphere, and waste materials are easy to recover and remelt; However, due to its low creep strength, it is prone to natural aging causing scale changes. Prepared by melting method, die casting or pressure processing. According to the manufacturing process, it can be divided into cast zinc based alloys and deformed zinc based alloys.

Comparison with babbitt alloy

In addition to significant cost performance advantages, it also has higher durability, lower proportion, and wider application scale.

Compare to Bronze

1. The strength, hardness, and allowable pressure are appropriate for aluminum bronze, widely exceeding tin, lead, and the allowable speed is near. It can fully meet the application conditions of independent antifriction and wear-resistant parts such as bearing pads.

2. Due to its strong affinity for lubricating oil and better self-lubrication, as well as its metallurgical properties (low melting point, difficult to metallurgically combine with steel shafts), it has strong adhesion resistance and outstanding friction and wear resistance characteristics in application.

3. Low conflict coefficient, low wear, and therefore longer service life. Under equal application conditions, it is generally more than times the size of copper tiles, thereby reducing the acquisition cost of accessories.

4. High thermal conductivity (ZZnAl27Cu2Mgλ=25; ZCuAl0Fe3λ=59), fast heat dissipation, slow and low surface temperature rise, and better protection against pairing conflicts.

5. Low data density (ZZnAl27Cu2Mgρ=5g/cm3), light product weight (same model, same standard, light weight/3), making installation and protection more simple and convenient.

6. With high damping characteristics, it can reduce vibration and resist noise.