What are the disadvantages of pulley drive? Disadvantages belt drive are: flexible drive pulley sliding and slipping lower transmission efficiency and can not maintain accurate transmission ratio; when the pulley drive to deliver the same large circumferential force, outline the size and engagement of the drive shaft is greater than the pressure; pulley drive belt The short-lived. Types of machinery and equipment, such as the size of the diameter pulleys are based on their own with a reduction ratio, according to the operating speed of the motor speed of their own design Bushes installation techniques introduced Bushes drive has run smoothly, can ease the load impact, low noise Low vibration, simple structure, low cost, easy maintenance, good flexibility and elasticity, overload protection can slip, shaft center distance adjustment range, no lubrication and so on. At the time of installation more convenient disassembly motor pulley, the pulley during operation due to some more loose, installation requirements are higher, from the shaft hole to the belt groove as a whole, when you install the shaft bore and shaft interference fit closely to ensure that they meet axial sliding does not occur with the flat key connection to the drive. Because there is a big Bushes interference, to bring the pulley installation and removal is very difficult, in practice, often due to the need to install and remove damaged pulley percussion dedicated fan pulley, while extending the installation time, resulting in spare parts and maintenance, installation costs increase Bushes analysis, equipment and other shortcomings prolonged recovery operation. Bushes, is the separation of the traditional part of the belt and pulley shaft hole section into two parts, by the inner cone pulley and shaft hole (outer cone sleeve) integrally connected with the outer cone Bushes, drogue open radial slots, may be varied to facilitate circumferential diameter drogue under pressure or tension. After installation, the inner pulley cone and outer cone against the inner sleeve junction hex bolts clamping mating surfaces to form a whole, works and traditional pulley is no different. Dedicated fan pulley _ _ Bushes Hengda machinery provided by the Texas Hengda Machinery Limited. Texas Hengda Machinery Co., Ltd. (www.sddzhdjx.com) (www.sddzhdjx.com) strong, credible, in Dezhou machining industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Hengda Machinery and you hand into the brilliant, for a better future!