Miniature bearing parts of the structure of the commonly used language

In the bearing industry, there are many professional term structure on the surface of rolling bearing components, understanding these terms is the extremely good. 1. Name (structure surface 1) Have for steel ball raceway bearing cylindrical ( Or ying) Fine, these called off ( Or outer raceway) ; Also, within the circle for steel ball ( Or roller) Rolling groove is called groove ( Or fluid passage) 。 Outside the trench, Also known as channel) And within the outer raceway and groove ( Also known as channel) Ruling called fluid passage, rolled in. Within the fluid on the inner ring road or race; Figure outside the fluid passage on the outer raceway for short. ( 2) Inner and outer diameter hydraulic bearing inside diameter refers to the inner ring on the surface of the inner hole diameter; The surface outside diameter refers to the outer ring diameter. ( 3) Inside diameter and outside diameter rolling bearing in figure on the outer diameter is called the largest diameter; Figure on the inner surface of minimum outside diameter is called the outside diameter. Figure 1 - 3 terms there are many terms dynamic bearing structure surface, will be in the following sections, such as the inner ring and outer ring width, etc. The above terms can be made of FIG. 1 3 a, figure in the symbolic meaning - see table 1 1. Fee 11 cylindrical within the language of dynamic bearing dimensions d d d d, and E in straight 'outside through internal and external degrees outside,' meaning 'outside' degree of 2. Code on the fluid dynamic bearing parts of the existing rules of digital said, see table 1 2. Such as, cylindrical use '01', within the circle by '02', says that, when writing bearing parts don't have to write the name, but only write the code. For example, 6308 bearing inner ring code available 6308/02; While 30308 eo1 said 30308 e bearing outer figure