Single-stage final drive bearing layout dimension bearing A radial force F1 = F (a + b) a2 + Frz (a + b) a-FazDm12a2 bearing A axial force is R1 = Faz bearing B radial The force is F2=Fba2+Frzba-FazDm12a2 The axial force of bearing B is R2=0 The radial force of bearing C is F3=Fdc+d2+Frcdc+d-FacDm22(c+d) The axial force of bearing C is R3 =Fac Radial force of bearing D is F4=Fcc+d2+Frccc+d-FacDm22(c+d)2 Axial force of bearing D is R4=0 Where: Dm1, Dm2 are main and driven gear teeth, respectively The width of the circle at the mid-point; a is the distance between the bearings A and B; b is the distance between the bearing B and the mid-width of the driven gear; c is the distance between the bearing C and the indexing circle of the driving gear; d is the bearing D Distance to the active gear index circle. The equivalent dynamic load of the bearing can be solved as Q = w1Fj + w2Rj (j = 1, 2, 3, 4) (4) where: w1 is the radial coefficient; w2 is the axial coefficient. So the rated life of the bearing Lh is Lh = CQE10660n (5) n = 2.66vavgrt Where: C is the rated dynamic load of the bearing, can be found by the bearing standard manual; E is the life index, for tapered rollers, cylindrical roller bearings Take 10/3, the ball bearing is taken as 3; n is the calculated rotational speed of the bearing; vavg is the average running speed of the car, take 60km/h for the car, 40km/h for the truck; rt is the rolling radius of the tire. Bearing calculation and selection software to achieve system architecture The software system is divided into two parts of the client and Web side of the program, the system architecture is divided into three layers: the user presentation layer, the middle layer and the database layer. The middle layer is divided into Web layer and general data access layer, as shown. The user presentation layer mainly refers to the browser, which uses the HTTP protocol to interact with the Web layer; the middle Web layer is used to respond to user requests and is implemented using ASP.NET technology; the middle general data access layer is accessed by general data through ADO.NET, ADO. NET evolved from ADO and is a linkless, message-based data access model. The data on the data source can be transmitted and stored as an XML document, so that as long as the application can parse XML, data access can be achieved; and the database layer completes the data storage and processing of the system. Concluding remarks Through analysis of the force of the final reducer bearing, relevant calculation formulas have been deduced, and on the basis of this, a set of bearing calculation and selection software has been developed. Compared with the traditional final drive bearing design method, the difficulty in solving the calculation is avoided and the calculation becomes simple, easy and fast. At the same time, the network-based system also enables the master reducer bearings to realize collaborative design, which lays a good foundation for the later master final assembly assembly co-design. The software system has been tested in some automobile parts and components companies in Anhui Province with good results. Cattle Equipment,Cattle Panels ,Farm Gates ,Corral Panels Livestock Machinery Co., Ltd. , http://www.nbpigfarm.com