ISO ISO/TC 4 Rolling bearings
· Standardization of all types and all sizes of bearing elements based on the principle of rolling motion, includingication and standardization of spherical plain bearings, i.e. plain bearings with spherical contact surface. ISO/TC 4/SC 4
· iso,。International Organization for Standardization 。ISO“ISOS”，“EQUAL”－。（ISO）（ISO）。
Tolerance classes and the corresponding values for certain tolerance characteristics are specified in ISO 492 (for radial bearthese standards were aligned with general ISO GPS (Geometrical Product Specification) standards such as ISO 1101 and ISO 5459.
Bearing model Abbreviation Design DIN ISO Radial bearing 6 Deep groove ball bearing, single row Deep groove ball bearing, doubour point contact bearing Self aligning ball bearing N, NU, NUP, NJ Cylindrical roller bearing, single row NNU Cylindrical
NNF5019 ADA 2LSV，，，。Full complement cylindrical roller bearing with snap ring grooves Designation D。 www.wjw.cn
· contact bearings, or 10/3 for typical roller bearings. Ten years later, in 1962, ISO adopted this approach in the could eas ily be used by both bearing manufacturers and users, R281 was a leap forward—but only the beginning of the story. W
Single bearings and matched bearing pairs arranged in tandem Normal Check availability of C2, C3, C4, C5, reduced ranges of stValues are valid for unmounted bearings under zero measuring load. Matched bearing pairs arranged back to back or face to face
SKF NNF5019ADA 2LSV
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WSW NNF5019N2V,Double row Full Complement Cylindrical Roller Bearing NNF5019N2V,NNF5019N2V is belong to Double row Full Complement Cylindrical Roller Bearing,NNF
ISO 281:2007 specifies methods of calculating the basic dynamic load rating of rolling bearings within the size ranges shown irdance with good manufacturing practice and basically of conventional design as regards the shape of rolling contact surfaces.
· ISO Dimensional system and bearing numbers 1.2 Formulation of bearing numbers The rolling bearing is an important mstandardization of bearing numbers has been examined by ISO but not adopted. Now, manufacturers of various countries are using
bearing NNF5019DAD2LSV bearing,NNF5019DAD2LSV is belong to Application of bearing,NNF5019DAD2LSV feature Excavator bearings.NNF5019DAD2LSV dimension:**.