More OEM customers tend to select hollow shafts, high‑strength alloy steel shafts and composite material shafts. Compared with conventional solid shafts, well‑designed hollow drive shafts can reduce overall weight by 25%‑40%, while maintaining sufficient torque‑bearing capacity.
At present, many drivetrain manufacturers are upgrading their production lines to handle lightweight shaft processing, including precision forging, high‑speed turning and special heat treatment. Material selection such as SCM415, 42CrMo and other alloy steels are widely evaluated for new‑energy projects. Suppliers with drawing‑based custom development capability will gain more competitive advantages in global EV supply chains.
