{"id":20389,"date":"2021-03-01T06:49:24","date_gmt":"2021-03-01T06:49:24","guid":{"rendered":"https:\/\/www.meetyoucarbide.com\/?p=20389"},"modified":"2021-03-01T06:49:25","modified_gmt":"2021-03-01T06:49:25","slug":"know-how-to-select-suitable-automobile-bearing","status":"publish","type":"post","link":"https:\/\/www.meetyoucarbide.com\/pt\/know-how-to-select-suitable-automobile-bearing\/","title":{"rendered":"Conhecimento para selecionar rolamentos adequados para autom\u00f3veis"},"content":{"rendered":"
Um carro geralmente tem cerca de 30 tipos de 50 conjuntos de rolamentos instalados em diferentes pe\u00e7as rotativas. Na pr\u00e1tica, os rolamentos de autom\u00f3veis s\u00e3o geralmente classificados de acordo com as pe\u00e7as de instala\u00e7\u00e3o ou uso. Correspondendo \u00e0 divis\u00e3o do autom\u00f3vel em motor, sistema de transmiss\u00e3o, sistema de dire\u00e7\u00e3o e sistema de ar condicionado, os rolamentos do autom\u00f3vel podem ser divididos em rolamento do motor, rolamento do sistema de transmiss\u00e3o, rolamento do sistema de dire\u00e7\u00e3o e rolamento do ar condicionado de acordo com a posi\u00e7\u00e3o de instala\u00e7\u00e3o, e ent\u00e3o podem ser ainda mais subdividido em cada componente do sistema acima e na posi\u00e7\u00e3o espec\u00edfica de instala\u00e7\u00e3o do rolamento. Devido \u00e0 diversifica\u00e7\u00e3o do design de autom\u00f3veis e rolamentos, diferentes pe\u00e7as e estruturas de rolamento s\u00e3o frequentemente usadas nas mesmas pe\u00e7as de autom\u00f3veis diferentes. Usando o bitmap da pe\u00e7a de instala\u00e7\u00e3o do rolamento e a tabela de espectro de tipo de rolamento correspondente, a posi\u00e7\u00e3o de instala\u00e7\u00e3o do rolamento pode ser mostrada de forma mais detalhada e intuitiva, e a rela\u00e7\u00e3o interna entre componentes e rolamentos pode ser revelada fornecendo o modelo do rolamento, dimens\u00e3o externa e posi\u00e7\u00e3o de instala\u00e7\u00e3o ao mesmo tempo.<\/strong><\/strong><\/p>\n\n\n\n The earliest used hub bearing is composed of two sets of single row radial ball bearings or tapered roller bearings. Its disadvantage is that the installation and maintenance need to fill grease and adjust the clearance. Improper grease type, dosage or not clean enough and improper clearance adjustment often lead to serious consequences of bearing life greatly reduced.<\/strong><\/strong><\/p>\n\n\n\n The improvement of hub bearing composed of two sets of single row bearings leads to the adoption of sealed double row bearing with pre adjusted clearance. The clearance of the bearing has been adjusted correctly during manufacturing, and the sealing and lubrication of the bearing itself can avoid the risk of dirt entering during installation and incorrect grease type and dosage. This kind of hub bearing which extends the functions of lubrication, sealing and clearance adjustment is called the first generation hub bearing.<\/strong><\/strong><\/p>\n\n\n\n Making the outer ring of the first generation hub bearing with flange constitutes the second generation hub bearing. The expansion of the structure and function of the hub bearing greatly simplifies the supporting structure of the hub, reduces the demand of the hub parts, and makes the installation easier. With the further expansion of the structure and function of the hub bearing, the third generation hub bearing has the functions of the bearing itself, the short shaft and the ordinary hub. Its inner ring flange is used to support the wheel and the brake disc, and the outer ring flange is used to support the brake disc Connect the suspension. In addition to many technical advantages, such as simplifying the design of automobile wheel and suspension device, reducing the volume, simplifying the assembly, easy to move and the possibility of installation error is very small, the cost of automobile parts is also effectively reduced.<\/strong><\/strong><\/p>\n\n\n\n At present, the expansion of structure and function has made the hub bearing develop to the fourth generation which is integrated with constant velocity universal joint, so that the technical performance and economic effect of hub bearing have reached a new level.<\/strong><\/strong><\/p>\n\n\n\n The main function of hub bearing is to bear load and provide accurate guidance for the rotation of hub. It bears both axial load and radial load, so it is a very important part.<\/strong><\/strong><\/p>\n\n\n\n The traditional bearings for automobile wheels are composed of two sets of tapered roller bearings or ball bearings. The installation, oiling, sealing and clearance adjustment of bearings are carried out on the automobile production line. This kind of structure makes it difficult to assemble, high cost and poor reliability in the automobile factory, and when the automobile is in the maintenance point, it also needs to clean, oil and adjust the bearing. Hub bearing unit is developed on the basis of standard angular contact ball bearing and tapered roller bearing. It integrates two sets of bearings. It has the advantages of good assembly performance, omitting clearance adjustment, light weight, compact structure, large load capacity, pre loading grease for sealed bearing, omitting external hub seal and avoiding maintenance. It has been widely used in cars There is also a trend to gradually expand the application of heavy trucks.<\/strong><\/strong><\/p>\n\n\n\nHub bearing<\/strong><\/strong><\/h2>\n\n\n\n
1. The earliest hub bearing<\/strong><\/strong><\/h3>\n\n\n\n