NF ISO 199
Rolling bearings. Thrust bearings. Tolerances.
La présente norme fixe les tolérances sur le diamètre d'alésage de la rondelle-arbre et sur le diamètre extérieur de la rondelle-logement ainsi que les tolérances d'exactitude de rotation des butées à billes pour les classes de tolérances normale, 6, 5 et 4. Les tolérances sur la variation d'épaisseur ne s'appliquent qu'aux rondelles plates.
ISO 199:2005 specifies tolerances for boundary dimensions (except chamfer dimensions) and for the running accuracy of thrust rolling bearings with flat back faces as specified in ISO 104. It is not applicable to certain thrust bearings, e.g. thrust needle roller bearings, or for particular fields of application, e.g. thrust special precision bearings. Chamfer dimension limits are given in ISO 582.
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