VIIPLUS can offer shaped sinter bronze bush in a variety of iron or bronze materials. It’s the ability to produce complex shaped parts to close tolerances in volume at a much lower cost.

Sintered bronze bushings are rigid, temperature resistant, and have high-strength parts formed through the process of sintering or powder metallurgy. Applications for shock absorbers, home appliances, automobiles, and as well as most commonly as bearings or bushings, sintered bronze parts can be produced in large quantities with consistent properties and sizes.

Sintered bronze bush mainly consists of the following steps.

• Preparation of powder,
• Formin
• Sintering
• Post-treatment

Bronze is an ideal material choice for the process of sintering as it is a non-ferrous metal that is commonly used as a conductive material and its porosity allows lubricants or air and liquids to pass through it. Through an effective sintering process, the properties of material strength, translucency, and thermal conductivity are enhanced and because it is a simple process, most of the other physical properties of the metal are retained.

Sae841 Sintered Bronze Bush With Oil-Impregnated

One of the finest powder metal bearings on the market. Using a proprietary blending and sintering process this gives us a uniform grain structure and spheroidized porosity which results in superior strength, lower coefficient of friction, and a uniform oil coating of the mating shaft. During operation, oil-impregnated bronzes have a proven record of excellent wear resistance and long life where normal lubrication is difficult or impossible to provide.

The bush in Sinter Bronze bush gives a wide range of applications, and is realized with a powder of bronze sintered, calibrated, and impregnated into specific oil (volume of impregnation of 25% ÷ 29% as per DIN 30910 Sint A50). During the application, this kind of material, thanks to the oil impregnation, develops a film of lubricant oil, between the shaft and the bush.

Sintered Bronze Bush – Reduce Your Costs

Sinter bronze bushing has good cold and hot processing performance, using a variety of molding processes, powder raw materials can be directly molded, with less residue, no residue of rough or net molding parts, and mechanical processing is greatly reduced. The utilization rate of the material is improved and the cost is reduced.

Sinter bronze bushings are named after the method by which they are manufactured – so-called “sintering”. In this process, the embryo, which is pressurized and shaped from powder, is heated to a suitable temperature below the melting point, so that adjacent powders diffuse into each other to produce a solid bond. Depending on the process and the material, this results in a rather coarse porous part. This pore structure is the secret to the success of sinter bronze bushing.

Sinter bronze bush is a mass production process that can reduce costs to a surprisingly low level compared to CNC machining. An added benefit of sinter bronze bushings is the unique pores that form in the metal structure. These pores act as a reservoir for lubricant, providing a channel to the bearing surface. This unique feature adds the benefit of self-lubrication to many powdered metal bearings.