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输送链条分为大节距输送链条和短节距输送链条还可以定做成各种样子的非标链条
平顶链结构特点：
链节制成履带板状，它既是张力元件，亦是链条工作时的承托元件，铰链为转动副，与链轮的接触部位是顶板的铰链处。
适 用于同一平面内罐头、玻璃器皿等物品的输送
Flat top chain structure:
link is made into a pedrail plate. It is the tension element is also chain supporting device, hinge for rotating pair, the sprocket wheel and the contact parts is the roof of the hinge.
Suitable for the same plane can, glass and other items delivery
5. 套筒的外经加工：套筒外径（除用卷管机能达尺寸精度外）都需要磨削，在加工时一定要留出足够的磨削量。
