The early automobile wheel hub bearing part is adopting two sets of single row tapered roller bearing, but this kind of bearing can not assure the using reliability and durability of the whole car. Under this condition, the bearing structure was badly in need of improvement, so there is double-row tapered roller automobile wheel hub bearing. Double row bearings are much better than the previous generation of bearing in using and the reliability aspect, and it gradually replaced two single-row bearing structure and is approved and accepted by the market.
In recent years, the appearance of double row tapered roller bearing automobile bearing with flange structure has further improved the quality, with better performance and reliability. This kind of high performance bearing is being acknowledged by the market. Because it has good reliability and bearing capacity, it is often used as hub bearing of driving wheels. Its inner size is large, at a range of 43-58 mm, so the structure of the whole car is more compact and the reliability is improved. Its structure is as shown in the picture below:
Source SKET BEARING
