erpillar 311B 2LS Coupling Hydraulic Parts 099-0149 Engine

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Couplings are also called couplings. A mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. Sometimes it is also used to connect shafts and other parts (such as gears, pulleys, etc.). It is often composed of two halves, which are respectively connected by keys or tight fittings, and are fastened at the ends of the two shafts, and then the two halves are connected in some way. The coupling can also compensate for the offset (including axial offset, radial offset, angular offset or comprehensive offset) between the two shafts due to inaccurate manufacturing and installation, deformation during operation or thermal expansion, etc. ; and shock mitigation and vibration absorption. [1]
Most of the commonly used couplings have been standardized or standardized. Generally, it is only necessary to correctly select the type of coupling and determine the type and size of the coupling. When necessary, the load capacity can be checked and calculated for its vulnerable weak links; when the rotation speed is high, the centrifugal force of the outer edge and the deformation of the elastic element should be checked, and the balance check should be carried out.

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Yingfeng Construction Machinery Limited established in 1988,having both trading company and owned factory .Office and showroom are loed in Guangzhou ,Panyu district. We produce and sell various Excavator Parts,such as coupling,Oil Seal,Hydraulic Parts,Excavator Rubber Parts,Excavator Electric Parts,Excavator wearing Parts,Engine Parts,Excavator Filters,Excavator Gears,Bearings,Excavator A/C Parts,Excavator Undercarriage Parts and Some air compressor couplings.