How to Quantitatively Analyze Wear of Slewing Bearings to Determine Repair and Replacement Timing
Quantitative evaluation of slewing bearing wear should focus on four core rotational accuracy indicators: bearing clearance, axial runout, radial runout, and gear runout. Among them, bearing clearance is the most direct and critical measure of wear progression. When clearance exceeds twice the design limit, maintenance is required; exceeding three times the limit indicates the need for replacement preparation. After installation, gear tooth contact pattern analysis becomes the most practical monitoring method. Combined with abnormal noise, metallic debris in grease, or rotational irregularities, these indicators provide a reliable basis for determining repair and replacement timing and for planning spare bearing procurement in advance.
