What are the major bearings used in a clutch assembly?

The major bearings used in a clutch assembly include the pilot bearing, which plays a crucial role in supporting the end of the transmission input shaft. This bearing is essential for the correct alignment of the input shaft with the clutch disc and pressure plate assembly, allowing smooth engagement and disengagement of the clutch. Proper functioning of the pilot bearing reduces friction and wear, leading to better performance and longevity of the clutch system.

While the release bearing is also a component of the clutch assembly, it is specifically involved in the process of engaging and disengaging the clutch when the clutch pedal is pressed. It is mounted at the back of the transmission but is not classified as a major bearing in the same sense as the pilot bearing, which is directly linked to supporting the input shaft. Therefore, the focus on the pilot bearing as a major bearing in this context is the reason for the emphasis on that aspect in the answer.