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　　The main purpose of the Z14 type expansion sleeve (referred to as the expansion sleeve) is to replace the connection of single keys and splines to realize the connection of mechanical parts (such as gears, flywheels, belt pulleys, etc.) and shafts to transmit loads, and its function is in use There are two major categories of swelling and locking in the middle...

　　The inner and outer cone rings of the Z15 type expansion sleeve are tightened with hexagon socket bolts, with a long joint surface and good centering. It is suitable for occasions with high rotation accuracy requirements and large load transmission...