Can a Worn-out Thrust Bearing Be Left Unreplaced?
1 Answers
No, it cannot be left unreplaced. Failing to replace a damaged thrust bearing will have consequences. In mild cases, it may affect ride comfort, increase tire noise, and cause vehicle deviation. In severe cases, it can lead to suspension damage, resulting in steering system failure and potential traffic accidents. Below are additional details: 1. Overview: Automotive thrust bearings, also known as pressure bearings, are most commonly found in MacPherson strut suspension systems. This is because the MacPherson strut design uses the spring shock absorber as the load-bearing pillar, which also serves as the pivot point for steering rotation in conjunction with the steering knuckle. The thrust bearing is positioned at the top of the shock absorber, between the spring and the shock absorber's upper mount. It must withstand vertical pressure while allowing free rotation, making it a critical component in MacPherson suspensions. 2. Causes of Thrust Bearing Failure: Currently, ball thrust bearings are commonly used. These bearings have a drawback - while they can handle significant vertical loads, they cannot withstand horizontal forces. When turning the steering wheel while stationary, friction between the tires and the ground creates a horizontal torque that causes the axle supporting the tire to tilt. This tilting force acts on the thrust bearing, subjecting it to horizontal stresses.
