Technical principles medias
· Non locating bearings Ideal non locating bearings are cylindrical roller bearings with cage N and NU or needle rol displaced on the raceway of the bearing ring without ribs. All other bearing types, for example deep groove ball bearings and
Bearing data . Loads . Temperature limits . Permissible speed . Designation system . Insert bearings (Y bearings) Angular cont bearings . Four point contact ball bearings . Self aligning ball bearings . Thrust ball bearings . Angular contact thrust
· 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 492:2014 specifies dimensional and geometrical characteristics, limit deviations from nominal values, and tolerance valuesace (except chamfers) of radial rolling bearings. The nominal boundary dimensions are defined in ISO 15, ISO 355 and ISO 8443.
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.
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· PD ISO/TS 5660 4:2016 Reaction to fire tests. Heat release, smoke production and mass loss rate PD ISO/657 1:2020 Plain bearings. Hydrodynamic plain journal bearings under steady state conditions PD ISO/TS 31657 2:2020
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· ISO Dimensional system and bearing numbers 1.1 ISO Dimensional system The boundary dimensions of rolling bearings, width, and chamfer dimensions have been standardized so that common dimensions can be adopted on a worldwide scale. In Japan,