Powder metal bushing is a type of bearing that can be used in a variety of applications. This is because it offers good precision with low costs. It is also very reliable and can work thousands of hours without wearing.

The process of making this part involves compressing metallic powder. Several metals are involved in this process, including iron, nickel, steel, and copper. These materials are then heated at a temperature below their melting point and are pressed into shape to create the finished bushing.

A core and core extension rod move together in concert to press the powder into shape. In addition to this, the parts are sintered to add physical properties to the final product. Another advantage of this particular process is the fact that there is no need for lubricants.

There are two major types of powder metal bushings, each with its own unique specifications. They can be produced from a wide range of materials, including nickel, copper, bronze, aluminum, and carbon steel. All these parts can be customized to fit your application and needs.

The first type of powder metal bushing is a plane bearing. This is a relatively inexpensive option that comes in a wide variety of sizes and shapes. Typical uses include main bearing caps, connecting rods, and starter motor components. Other industries that utilize these parts include appliance manufacturing, outdoor power equipment, and lawn and garden.

The second type of powder metal bushing is a distance bearing. This is an efficient method of producing large volumes of parts. Because of the high volume production capabilities, it provides a cost-effective alternative to standard machining. For example, the process can be used to make bearings that operate under heavy loads.

Unlike screw machine bushings, a powder metal bushing does not require lubricants or rolling elements. The result is a smoother action and tighter tolerances. Plus, the process is environmentally friendly.

When making these parts, the key is selecting the correct material. If you want to ensure your final parts will perform at their optimum, a secondary heat treatment is also available.One of the most common applications for these components is in the automotive industry. These parts can be found in starter motor components, main bearing caps, and even door hatch mechanisms. 

Another benefit of these parts is that they have a lot of self-damaging features. For instance, a powdered metal part can have a network of small pores that will help to prevent wear. However, when using a bushing in an application that requires friction, lubricating oil may need to be added.

Depending on the requirements of the application, there are several other processes that can be used to produce the desired bushing. Some of these processes include compression molding, mechanical press, and hydraulic press.

The mechanical bushing is made of metal powder as the main raw material and mixed with different metal accessories according to special needs. Using a hydraulic or mechanical press, direct compression molding, followed by a sintering process to improve the physical and mechanical properties of the bushing. The shaft sleeve manufactured by powder metallurgy has the characteristics of low cost, vibration absorption, low noise, and no need for lubrication, and is especially suitable for environments where oil pollution is not allowed or lubrication is inconvenient. These powder metal sintered bushings are used in car starters, cooling systems, brake systems, oil pumps and electric motors, as well as household appliances such as washing machines, electric fans, juicers, coffee makers and vacuum cleaners. This metal powder bushing is extremely reliable and can operate for thousands of hours without wear. They are also maintenance-free and require no lubricant.