To what extent can wheel hub damage render it unusable?
2 Answers
Generally, it mainly depends on the level of deformation and cracking of the wheel hub. If the wheel rim is deformed or cracked, the tire should be tested on a dynamic balancing machine. If the tire shows signs of shaking, then the tire cannot be used anymore. Below is a detailed introduction: 1. Degree of damage: If the wheel rim is only slightly impacted, it will not cause significant harm to the suspension system. If the impact is more severe, it is necessary to go to a repair shop for inspection, including four-wheel alignment checks, etc. 2. Hazards: If the tire hits the curb, it will cause certain damage to the tire, wheel rim, suspension, and shock absorber. In severe cases, it can damage the tire, causing bulges on the tire sidewall, tire blowouts, wheel hub deformation, and may also damage the suspension system, leading to body deformation and noise during driving.
As an auto mechanic, I've seen all kinds of wheel damage cases. Whether a wheel is unusable after impact mainly depends on three factors: degree of deformation, presence of cracks, and overall structural integrity. Minor scratches or small dents that aren't deep and show no cracks usually don't affect functionality. However, severe deformation - like a bent rim or dents deeper than 2-3mm - will compromise wheel balance, causing significant steering wheel vibration during driving, and may even lead to tire deflation or blowouts in severe cases. Cracks are even more dangerous; even a tiny hairline fracture can expand during driving and cause sudden wheel failure, posing serious safety risks. I recommend owners manually inspect wheels by running hands along the surface to check for smoothness, and immediately visit professional shops for testing/replacement if abnormalities are found. Wheels bear the vehicle's entire weight - never compromise on this critical safety component.
