The expansion sleeve is a conservative basic element widely used in the combination of large load machines in the new domestic machinery today. In the combination of the wheel and the shaft, the coupling expansion sleeve is the pressure generated between the containing surfaces by tightening the high-strength nut A keyless joint installation that completes load transfer with friction.
The coupling expansion sleeve has a long service life and high strength. The expansion sleeve relies on the conflict transmission, and there is no keyway weakening for the combined parts, and there is no absolute movement, and no wear occurs during the task.
　　 The expansion sleeve is easy to assemble and has excellent exchangeability. Because the expansion sleeve can unite the shaft and the hub with a larger cooperation gap, the nut can be loosened during assembly, and the combined part can be easily disassembled. When swelling tightly, the parallel surfaces are tightly fitted without being easy to rust, and it is also easy to disassemble.
　　Expansion sleeve The use of expansion sleeves makes it easy to build and install a long machine. The machining of the shaft and hole of the coupling expansion sleeve does not require high-precision manufacturing like interference cooperation. There is no need to heat, freeze or pressurize the expansion device, as long as the nut is tightened according to the requested momentum torque. And the transfer is convenient, and the hub can be easily transferred to the required position on the shaft. The expansion sleeve can also be used for the whole machine with poor riveting performance.
　　 The expansion sleeve can accept multiple loads, and its structure can be made into a variety of styles. According to the load of the device, multiple expansion sleeves can be used in parallel.
　　The expansion sleeve has a long service life and high strength. The expansion sleeve relies on the conflict transmission, and there is no keyway weakening for the combined parts, and there is no absolute movement, and no wear occurs during the task.
　　The factory mainly consumes bulging goods of various races. In order to satisfy the needs of depositors, the company's main purpose is to seek stagnation with high technology, seek life with quality, and seek benefits with depositors. It strives to use conservative consumption management and strict quality requirements to demand high-quality goods and satisfactory services from users.