Causes of Slew Bearing Noise

[SanStephanie]

Slew bearing noise can be caused by uneven mounting surfaces, impurities inside the slew bearing raceway, or insufficient lubrication. Uneven Mounting Surface: If the flatness of the mounting surface does not meet requirements, it can create negative clearance in the raceway, leading to noise. Improper installation, whether too tight or too loose, can also cause slew bearing noise. Impurities Inside the Slew Bearing Raceway: Particles such as sand or metal shavings inside the slew bearing raceway can cause noise. In such cases, the machinery often struggles to operate properly. Insufficient Lubrication in the Slew Bearing: Check if the raceway lacks lubrication. If so, adding lubricant can reduce friction between components.

[McAdaline]

Last time I researched car bearing issues, I learned that there are quite a few reasons for slewing bearing noise. The main problem lies in insufficient internal lubrication or lack of grease in the bearing. After prolonged use, the grease dries up, causing harsh metal-to-metal friction sounds—something I've encountered several times in my own car. Another factor is component wear; deformed or fractured balls or raceways can produce clicking noises, especially in older cars that have been driven for a long time. It could also be due to installation errors, such as loose screws or deformation caused by external impacts. I recommend promptly checking the lubrication condition at a repair shop and replenishing the grease, while regular maintenance can prevent the noise from worsening. Ignoring it can affect steering stability and increase driving risks.

[Stella]

When dealing with vehicle faults in the workshop, I often encounter abnormal noises from the slewing bearing. Common causes include dust or moisture intrusion damaging the lubrication layer, leading to rust and friction; if the vehicle frequently travels on bumpy roads, component fatigue cracking can also cause abnormal noises. External impacts such as hitting a rock can deform the bearing structure, making the noise more noticeable. Early detection is not difficult to handle: simple oil replenishment or tightening can solve the problem, but delaying it will require replacement and major repairs, doubling the cost. During normal driving, if I notice the noise only during specific actions like steering, I need to be cautious.

[CharlieAnn]

After driving a family car for many years, I occasionally noticed squeaking sounds when turning or going over bumps. After consulting with a friend, I learned that this could be due to lubrication failure of the slewing bearing or aging of the seals, allowing impurities to enter and increase friction. New drivers often overlook this, but accumulated abnormal noises can worsen components and affect handling safety. It is recommended to check the vehicle before starting, regularly clean the chassis to prevent mud and water from seeping in, and quickly repair any issues to maintain smooth driving.