他们担心将简单的轴换为复杂的齿轮箱将增加维护成本一些设备将容易损坏。
They worry that replacing a simple shaft with a complex gearbox will increase maintenance costs and make it more likely that something will go wrong.
重型不锈钢轴：高速运转时刚性强，不易损坏，坚实耐用。
Heavy stainless steel shaft: when high-speed running rigidity is strong, uneasy to damage, solid and durable.
现有轴头密封动、静接触面易 碎、易损，不耐磨。
The prior shaft head seals have the defects of easily broken, damaged and worn dynamic and static contact surface.
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