1. ISO Dimensional system and bearing numbers
· 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
K14x19x17 Needle Roller Cage Assembly 14x19x17mm. Needle Roller Cage Assemblies: A ready to mount, self contained bearing compbearing arrangements with a high load carrying capacity and stiffness yet only requiring a minimal amount of radial space if
ISO 16047 ： ISO 16047 2005 Fasteners Torque/clamp force testing － 1 24 NOTE The bearing surface friction torque may be calculated from the measurements of tightening torque and thread torque as
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.
· 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 7148 2, Plain bearings — Testing of the tribological behaviour of bearing materials — Part 2: Testing of polymer basedls.  BEGELINGER, A. and DE GEE, A.W.J., Wear in lubricated journal bearings, Transactions ASME, 100 (1), 1978, p. 104 109.
· 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
ISO 1940_1 2003_E_
In order to facilitate this approach, this part of ISO 1940 takes the bearing planes A and B as reference planes for balance tolerances (tolerance planes). 4.5 4.5.1 Correction planes General Rotors out of balance tolerance need correction.