Copper sleeves In terms of wear resistance, steel sleeves are more wear-resistant than copper sleeves, but there are few steel sleeves actually used, which will quickly wear the shaft. Generally, when the bush-type sliding bearing is used in the design, two materials are used for the shaft and the sleeve. Since the shaft is rotating and the bearing bush is fixed, friction will inevitably occur during the rotation, which will cause the wear of the shaft and the bearing bush.

Hongliang recommends a comparison of the wear resistance of different materials of copper sleeves:

Copper bearing But the machining, disassembly precision and assembly of the shaft are relatively difficult, and the bearing is easy to fix, repair or replace. Therefore, when selecting materials, consciously choose the bearing material to be softer, such as phosphor-tin bronze, aluminum-iron bronze, tin-zinc-lead bronze and so on. And choose different copper alloys according to different use conditions, and the shaft material will be harder or more wear-resistant. In this way, in almost all bearing coordination, the axle will be made of steel and the bearing will be made of copper. If rolling friction is used, the wear will be much smaller.

Aluminum casting brass is an alloy composed of copper and zinc. Brass composed of copper and zinc is called ordinary brass. Brass has strong wear resistance. Copper-zinc alloys containing more than 45% zinc have no practical value.

The multi-element alloy made by adding other alloying elements to ordinary brass is called brass. The frequently added elements are lead, tin, and aluminum, so they can be called lead brass, tin brass, and aluminum brass. Special brass has strong wear resistance, such as lead brass, because it has excellent wear resistance and high strength.

high-strength brass is also one of them. The chemical formula of high-strength brass is zc2n 24 al 6 Fe 4n 3. High-strength brass has strong wear resistance.

Aluminum bronze copper sleeve is a copper-based alloy with aluminum as the main alloy element, containing iron and manganese elements, high strength, good wear resistance, and good wear resistance.

The above is the content collected by Nantong Hongliang Ship Technology Co., Ltd., the editor, if necessary, please contact us.