High value static unbalance-type balance shafts

摘要

A static unbalance-type balance shaft for rotating machinery such as vehicle engines includes a bearing surface adjacent the other end. The balance shaft includes a balance weight adjacent the first end and a connector portion connecting the balance weight to the other end. The connector portion has a cross-section with at least one recessed surface thereby minimizing the mass or weight of the balance shaft and optimize the material of the balance shaft.