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The Punch copper sleeves/bushings is a kind of Colliers brass bearing using the oil groove Bay oil as lubrication. The Punch copper sleeves/bushings has the traditional features of tin bronze bearing, due to the use of high-strength bronze,hardness of Punch copper sleeves/bushings doubled, so the use life of the product in the low speed of the occasion can be doubled than general bronze sets life , and it can bearing heavy pressure, able to adapt to overloading occasions.The Punch copper sleeves/bushings is mainly used for force joints of the jaw crusher and a large gear box.
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