CWEA Mechanical Technologist Grade 1 Entry Level Certification Practice Exam 2025 - Free CWEA Practice Questions and Study Guide

One key advantage of using roller bearings over sliding bearings is the higher load capacity they offer. Roller bearings achieve this increased load capacity due to their design, which distributes the load over a larger contact area compared to sliding bearings. The rolling motion of the rollers reduces the contact area, which leads to a smaller amount of energy loss through friction, allowing roller bearings to handle significant radial and axial loads.

This characteristic is particularly beneficial in applications where heavy loads are present, or where bearing failure would have serious consequences. The ability to manage higher loads means that roller bearings can often be used in more demanding environments or for longer durations without the risk of overheating or excessive wear. This makes them a preferred choice in many mechanical systems, such as in automotive applications, industrial machinery, and various forms of equipment where reliability and performance are critical.