Why Choose Plastic Bearings

Why choose Plastic Bearings


Speaking of plastics, “weak”, “breakable”, “aging easily” frequently appearance in our mind. We trust metals more than plastics when comparing them as materials for bearings. However, the truth is bearings made of plastics can be outperform the metal bearings in lots of applications, even when the strength and durability are essential.


Most engineers have trusted metal bearings for years. They have years of experience of using metal bearings, or have been work with the suppliers of metal bearings for decades. Some don’t feel like to make a change out of habit. Others are simply under the thoughts that plastics aren’t capable of handling tough applications or severe, or harsh environments. Actually, the plastics are widely used in aerospace industry, Military Industry and so on, can withstand extreme temperatures, heavy loads and high speeds. Here are the advantages of all the material options for bearings in their designs.


Plastic Bearings

Self-lubricating polymer bearings are made of modified engineering plastics that have solid lubricants embedded in millions of chambers throughout the entire bearing wall. When the shaft spins, lubricant from plastic bearings gets transferred onto the surface of shaft, creating an ideal mating surface and a low friction coefficient. Polymer bearings, unlike sintered-bronze bushings, release solid lubricants as soon as the shaft begins to move. The fiber-reinforcing materials inside the bearing help the plastic bushings withstand high forces and edge loads. It can save lots cost not only on bearings but also on shafts in different materials.


CSB engineers are dedicated on the performance improvement on the self-lubricating materials derives the result that CSB-EPB® Materials are with excellent self-lubricating features and wear resistance Features and prolonged the bearing service life.


Here are five major benefits of engineering plastic bearings:



Engineering plastic bearings can replace bronze, metal-backed, and other simple bearings in almost any application. They are resistant to dirt, dust, and chemicals. It makes the machine or equipment easy to maintenance or without maintenance at all during their service life.


Cost Savings

Engineering plastic bearings reduce costs by up to 40% for overall bearing system. They are highly wear resistant, suitable for inexpensive shafts with low maintenance costs. The modification technology of engineering plastics offers customized service for different types of bearings, that is to choose the best solution both reliable and cost savings.


No messy lubricants

No additional lubricants are needed for Self-lubricating bushings, saving cost, time and labour.


Continuous & Consistent Friction Coefficient

Plastic bushings maintain a constant and low friction coefficient over their lifetimes. Plastic bearings prolong the service life of bearings with less wear. While metal-backed bearings can become worn and increase the COF, especially when running out of lubricants or lack of lubricants.


Corrosion Resistance

Plastic bushings can be applied in solutions, such as salt water and harsh chemicals without compromising performance. Those solutions can be a liquid lubricant for bearings.