Capacidad de carga estática en rodamientos. Normalización y tendencias. // Basic static load rating of rolling bearing. Standardization and trends.
Abstract
Para ilustrar la funcionalidad de la norma NC-ISO 76: 2006, establecida a partir de una adopción idéntica de la Norma ISO
76: 1987/ amd.1: 1999 (E) “Cojinetes de Rodamiento – Capacidad de Carga Estática”, son mostradas las correspondencias
entre las magnitudes de capacidad de carga estática declaradas en los catálogos técnicos de reconocidos fabricantes de
rodamientos con los valores presentes en NC-ISO 76 y considerando diferentes geometrías de rodamientos radiales de
bolas rígidos y de contacto angular, rodamientos axiales de bolas y rodamientos de rodillos cilíndricos. Adicionalmente, el
estudio ha permitido establecer las dependencias entre la capacidad de carga nominal estática del rodamiento y algunos
parámetros geométricos, como el diámetro del elemento rodante, el diámetro interior y la relación diámetro interior -
diámetro exterior del cojinete
Palabras claves: Rodamientos, capacidad de carga estática, Norma Cubana NC, Norma ISO.
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Abstract:
At the present time, Standard NC-ISO 76: 2006 is a national standard established as identical adoption of ISO
standard 76:1987 / amd.1: 1999 (E) "Rolling Bearings - Static Load Rating¨. In this sense, the static load rating of
rolling bearings declared in technical catalogs of renowned bearing manufacturers and the basic static load rating
according to calculation procedures stated in Standard NC-ISO 76 are compared. The evaluation has taken into
account different geometries of radial groove ball bearings, angular contact ball bearings, thrust ball bearings and
radial roller bearings. Additionally, they are established dependences between the static load rating of rolling bearings
and the interior diameter of different types of radial and thrust bearings.
Key words: static load rating, rolling bearing, NC/ISO Standard.
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