Effect Analysis of Machining Errors of the Axle Wheel Hub Planet Carrier on Function and Durability-Related Parameters

The wheel hub planetary gearset, a reduction gearbox of driven axles, is a susceptible driveline unit thanks to the number of gear meshes and its high manufacturing requirements. Due to its complexity, the planet carrier can be a potential source of functional parameter non-compliance (efficiency, noise, and vibration) in the short term; in the long term, there can be a reduction in the service life of the planetary gearset. This paper introduces a real case study that analyzes the calculated and experimental effects of planet carrier machining quality from a functional property and service life point of view, and compares two parts, which represent the original and the developed status of the pin hole drilling process.