wind power bearing rolling bearing

rolling bearing outside diameter size classification bearing their size, divided into: (1) miniature bearings ---- nominal diameter size range of 26mm or less wind power bearing‍; (2) a small nominal outer bearing ----- diameter size range of 28-55mm bearings; angular contact bearing‍ (3) small and medium sized bearings ----- nominal diameter size range of 60-115mm bearings; (4) in the large bearing ----- nominal diameter size range of 120-190mm bearing (5) large bearing ----- nominal diameter size range of 200-430mm bearings; (6) large bearings ----- nominal diameter size range of 440mm or more bearings. Rolling numerous types and sizes, in order to facilitate the design and selection, standard specifies the code represented by the rolling bearing type, size, structure, characteristics and tolerance level and so on. Thin section bearings‍ (Alternative GB272-88), Rolling Code constitutes as shown in the table. Rolling Code code representation purposes: to characterize the structure of the rolling bearing, size, type, precision, code constitutes: Front code - said bearing subassembly basic code - said after bearing types and sizes, such as the main feature set code - indicates the accuracy of the material bearing the characteristics of diameter code: ID Code × 5 = internal diameter special case: d = 10 12 15 17 code is: 00010203 size series Code: used to express the same outside diameter and width of the inner deck crane bearing‍ diameter but different bearings, see right. OD Series Code: special light (0,1), light (2), middle (3), weight (4) Width Series Code: normal width to "0", usually not marked. But for tapered roller bearings (3 classes) and spherical roller bearings (class 2) can not omit the "0"