**The Difference Between Ball Bearings and Roller Bearings** Home > Bearing Knowledge > The Difference Between Ball Bearing and Roller Bearing *728*90 created on 2018/5/16* var cpro_id = "u3440131";

The Difference Between Ball Bearings and Roller Bearings

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In the automotive bearing market, there are two main types of bearings in use today. One is the widely used roller bearing, such as those from companies like Huifang. The other is the double-row angular contact ball bearing, commonly found in products from foreign brands like SKF and FAG. In fact, most foreign automotive bearings are primarily double-row angular contact ball bearings, while domestic manufacturers tend to use roller bearings. The main reason for this difference lies in the initial mass production companies entering the Chinese market. They found that road conditions in China were not ideal, which affected the lifespan of bearings. As a result, roller bearings were chosen for their durability under harsh conditions. But what exactly is a ball bearing, and how does it compare to a roller bearing? Let’s take a closer look at their advantages and disadvantages. A **ball bearing** has a low starting friction coefficient, making it efficient for smooth motion. However, it is less resistant to impact and not ideal for rough or uneven roads. On the other hand, a **roller bearing** features line contact rather than point contact, which allows it to handle heavier loads and better withstand shocks. This makes it more suitable for challenging road conditions. It's often praised for its reliability, especially in older vehicles that have run across the country. However, roller bearings may have a slight delay in starting and can create a slightly rougher feel during operation, which might lead to increased fuel consumption—though these effects are often hard to notice. In some large and medium-sized cities in China, where road conditions are relatively good, ball bearings can be a suitable choice. However, when selecting ball bearings, it's important to use high-quality cast bearings to ensure performance and longevity.

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