This product is specifically designed for the pure electric drive system of the BYD Qin PLUS EV (including Champion Edition and Intelligent Driving Edition). It is a core transmission component connecting the reducer to the drive wheels—the drive shaft assembly. As the "power artery" of the pure electric vehicle transmission system, the drive shaft assembly is responsible for efficiently and smoothly transmitting torque from the reducer to the front wheels to propel the vehicle. At the same time, it adapts to wheel vertical movement and steering motion through constant velocity joints, making it a critical component for ensuring smooth power output and driving stability.

As a core sales model of BYD's pure electric vehicle lineup, the BYD Qin PLUS EV is available in multiple range versions including 420KM, 510KM, and 610KM. It is equipped with a permanent magnet synchronous motor with maximum power output ranging from 100-150kW and peak torque from 180-310N·m. The high-torque characteristics of the pure electric drive system impose higher requirements on the material strength, dynamic balance precision, and durability of the drive shaft assembly. This product is developed and manufactured strictly according to BYD OEM technical standards, using 40Cr/SCM440 high-strength alloy steel material, combined with precision heat treatment and 100% dynamic balance testing, ensuring smooth operation under high torque and high speed conditions without vibration or noise. The product is compatible with all BYD Qin PLUS EV models from 2021 to present, making it an ideal choice for aftermarket repair, accident vehicle restoration, and chassis overhaul.