Previous installments of TechTalk have discussed how using plastic bearings can help reduce wear and how different types of shaft materials affect wear and bearing life. In this installment, I’ll be discussing wear itself in more specific terms, and how different wear limits are dependent on certain application parameters and factors.
Considering the wear capabilities and limits of any machine component, particularly that of a plain bearing, is extremely important for applications across all industries. Design engineers have to consider many elements, including how day-to-day wear will affect machinery performance, how various application factors will cause different wear patterns, and how the wear limits of a bearing depend heavily on the type of application it is being used in, just to name a few.
These are some of the environmental factors that can affect wear:
When Considering the Wear of Plain Bearings in an Application:
When Considering the Wear of a Plastic Bearing in an Application:
Keep in mind, you can change the preset wear limits based on your application requirements to achieve a longer life cycle, i.e. if you need tighter clearance, if your requirements are looser than what is suggested, etc.
*Always remember: Clearance = distance = free play between two parts (the shaft and the bearing) and does not depend on one part only!
Anticipating and calculating bearing wear is an important step when considering an application. There are numerous factors that can affect bearing wear and also influence the limits placed on a bearing’s life expectancy. If you have more questions on this topic or want to discuss your specific application, please call 1-800-521-2747 to speak with an igus® sales engineer or e-mail email@example.com.