Ball-Type/Round-Key-Type Friction/Differential Shaft - This product is used for winding single, double, or multiple materials. Due to the difference in outer diameter caused by material stacking, the air pressure of this shaft can be adjusted to effectively generate appropriate friction. It effectively maintains uniform tension across multiple rolls of material. To accommodate different material characteristics, such as high/low tension or high/low mechanical speed, our company offers various types of friction/differential rings and friction materials to choose from.
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