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The best bearing position is the nearest to the sprocket.
Time:2015/8/22 Hits:2574

Sprocket assembly is driven unit. Bearing strength and life is very important large scraper conveyor bearings using double row spherical roller bearing and double row tapered roller bearings. Because of the large radial force, the bearing position and the force position if there is a long distance. Will produce bending moment. And axial force, the bearing is pressed out of the bearing seat. Bolts and pull off the cover. The entire sprocket assembly cause fatal damage. The best bearing position is the nearest to the chain wheel, which also needs to cooperate with each other, so that the bearing position can be matched with the arc block of the die. And the maximum degree of reduction of the generation of bending moment. Ensure that the entire chain wheel assembly will have a strong support in the process of overload will not appear damage phenomenon, see figure 1. The disadvantage of the chain wheel is that the supporting arc block is too close to the sprocket two. Cause difficulty in the axial string of sprocket assembly. Scraper conveyor power part and sprocket assembly connection is the majority of the internal and external spline each other. The internal and external spline. This type of bearings is used for axial movement, while the radial force is large in double row tapered roller bearings. The industrial chain wheel and a kind of heavy scraper chain wheel structure, which is used in double row spherical roller bearing can overcome the bending moment on the bearing. This kind of shaft bearing and bearing force requirements has larger outer diameter. In order to ensure that the scraper can run in the sprocket teeth, the roller can not be designed too large. Can only let the bearing design on both sides of the board, see figure 2. This structure has obvious disadvantages: the safety factor of the sprocket shaft is large, and it must be guaranteed that the chain wheel shaft will not appear in the role of the cyclic stress. The reason is very simple, because the moment support point has reached the maximum point. Spherical bearings and tapered roller bearing inner diameter can prevent both sides of the bearing series. And ensure the sprocket component life
 
 

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