Oilless bushings, also known as self-lubricating bushings, are frequently used in injection molding machines to ensure smooth operation and extended life. The function and details of oilless bushings are as follows:
Function:
Oilless bushings are designed to reduce friction and wear between moving parts without the need for external lubrication. They eliminate the need for expensive oil and grease systems and require less maintenance than traditional bearings. Oilless bushings also offer exceptional resistance to high temperatures, chemicals, and moisture.
Details:
Oilless bushings are made of metal with a special layer of solid lubricant or a coating that provides a self-lubricating surface. The solid lubricant layer consists of graphite, molybdenum disulfide, or a combination of both. The coating can be made of various materials, including PTFE (polytetrafluoroethylene), bronze, or ceramic.
Oilless bushings can be manufactured in different shapes and sizes to match the application requirements. Bushings are typically installed in injection molding machines in areas where there is high wear, such as the guide rails, ejector pins, and clamp mechanisms. They can be press-fitted or slip-fitted into the housing with the help of locking devices.
The advantages of using oilless bushings in injection molding machines include reduced maintenance, longer service life, improved performance, and reduced downtime. These bearings offer exceptional reliability and cost-effectiveness, which makes them an ideal choice for high-precision applications.
