How can I tell if my wheel hub is bad?

To determine if a wheel hub is damaged, observe the following signs: Abnormal steering wheel vibration within a specific speed range (typically 60-80 km/h) during driving may indicate slight wheel hub deformation causing imbalance; Examine the wheel hub edge for significant gaps (exceeding 5mm in length or 2mm in depth) or cracks, as such structural damage compromises driving safety and necessitates immediate replacement; Inspect the wheel hub-tyre contact surface for oxidation corrosion or coating delamination - metal substrate corrosion exceeding 1mm depth renders the hub unrepairable. Notably, vehicles frequently driven on rough terrain should have their hubs replaced even with minor deformation, as repeated impacts may exacerbate latent damage. Professional workshops employ infrared scanning to measure deformation (replacement required if exceeding 3mm) and dynamic balance weight variance (hazardous if over 20g), while laser cladding technology is only applicable for localized repairs on specific materials. Wheel hub repair costs approximately one-third of replacement, but structural safety concerns mandate using original equipment manufacturer (OEM) specification replacements to ensure complete parameter matching (bolt pattern, offset, etc.). Regular hub inspections and avoiding curb impacts significantly prolong service life.