ISO 9982 pdf download

ISO 9982 pdf download.Belt drives — Pulleys and V-ribbed belts for industrial applications — PH, PJ, PK, PL and PM profiles: Dimensions 1 Scope This International Standard specifies the principal dimensional characteristics of V-ribbed pulley groove profiles, together with the corresponding endless V-ribbed belts, of PH, PJ, PK, PL and PM profiles which are used for general industrial applications. The PK belt was originally established for automotive accessory drive applications and ISO 9981 deals specifically with that particular field. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of the publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 254:1 998, Belts drives — Pulleys — Quality, finish and balance. ISO 4287:1 997, Geometrical product specification (GPS) — Surface texture: Profile method — Terms, definitions and surface texture parameters. 3 Pulleys 3.1 Groove dimensions and tolerances The groove dimensions of PH, PJ, PK, PL and PM belts are shown in figures 1 and 2, and given in table 1 . 3.2 Minimum effective diameter The minimum recommended effective diameter, d e , for V-ribbed pulleys is given in table 2. 3.3 Tolerances on finished pulley 3.3.1 Checking conditions Profile, diameter and run-out tolerances shall be checked on the finished pulley without surface coating. 3.3.2 Groove-to-groove diameter tolerances The variation in diameters between the grooves in any one pulley shall be within the limits given in table 3. This variation is obtained by comparing the diameter over balls or rods. 3.3.3 Radial circular run-out Radial circular run-out shall be within the limits given in table 4. Radial run-out measured with a ball mounted under spring pressure to ensure contact with the groove as the pulley is rotated.3.3.4 Axial circular run-out Axial circular run-out (full indicator movement) shall be within 0,002 mm per millimetre of effective diameter. Run-out is measured with a ball mounted under spring pressure to ensure contact with the groove as the pulley is rotated. 3.3.5 Diameter over balls The tolerances on the diameter over balls ( K ) shall be within the limits given in table 5.3.3.6 Groove finish The pulley grooves...