What Are the Causes of Drive Axle Noise?
1 Answers
Drive axle noise fault causes: 1. Excessive clearance: Excessive meshing clearance of conical and cylindrical main and driven gears, planetary gears, and axle shaft gears; Loose fit between axle shaft gear spline grooves and axle shafts; Poor meshing of main and driven bevel gears. 2. Loose gear bearings: Loose drive bevel gear bearings; Loose drive cylindrical gear bearings; Loose differential tapered roller bearings; Excessive preload on a rear axle bearing causing insufficient clearance; Improper adjustment of main and driven bevel gears resulting in insufficient clearance. 3. Poor meshing: Mismatch between differential planetary gears and axle shaft gears causing poor meshing; Worn or broken planetary gears and axle shaft gears; Worn differential cross shaft journals; Worn thin planetary gear support washers. 4. Insufficient meshing clearance: Insufficient gear meshing clearance at a certain part of the drive axle causing noise when going uphill; Excessive gear meshing clearance at a certain part of the rear axle causing noise when going downhill; Improper gear contact pattern or loose gear shaft support bearings at a certain part of the rear axle causing noise during both uphill and downhill driving. 5. Bearing damage: Damaged wheel hub bearings with loose outer rings; Foreign objects inside brake drums; Broken wheel hubs; Excessively worn wheel hub bolt holes causing insecure wheel rim fixation.