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This International Standard specifies the principal characteristics of synchronous pulleys for use in synchronous endless belt drives1) for mechanical power transmission and where positive indexing or synchronization may be required. The principal characteristics include : tooth dimensions and tolerances; standard pulley dimensions and tolerances, and quality specification.
Synchronous belt drives. Pulleys
This International Standard lays down dimensions, in millimetres, of straight-sided splines for cylindrical shafts with internal centering, light series and medium series. This International Standard also specifies control methods and corresponding gauges.
Straight-sided splines for cylindrical shafts with internal centering. Dimensions, tolerances and verification
This International Standard specifies, for classical and narrow V-belts of sections Y (for groove profile with datum width 5,3 mm) Z (for groove profile with datum width 8,5 mm) A (for groove profile with datum width 11 mm) B (for groove profile with datum width 14 mm) C (for groove profile with datum width 19 mm) D (for groove profile with datum width 27 mm) E (for groove profile with datum width 32 mm) SPZ (for groove profile with datum width 8,5 mm) SPA (for groove profile with datum width 11 mm) SPB (for groove profile with datum width 14 mm) SPC (for groove profile with datum width 19 mm) — the recommended datum lengths; — the tolerances for datum lengths; — the conditions for measuring the datum length. It is important that narrow belts are not used with pulleys uniquely designed for classical belts. This International Standard (a combination of previous ISO Recommendations) does not imply that classical V-belts can be used as replacements on drives designed for the use of narrow V-belts.
Classical and narrow V-belts. Lengths
This International Standard lays down conditions for a fatigue test for quality control on narrow V-belts (sections AV 10 and AV 13) intended for driving the auxiliaries of internal combustion engines used for automotive purposes. The dimensional characteristics of these belts and of the corresponding pulleys are the subject of ISO 2790.
Narrow V-belt drives for the automotive industry. Fatigue test
This International Standard lays down the main dimensions of endless hexagonal belts, generally intended for use on agricultural machinery (and, in particular, harvester-thresher machines), together with the groove sections of the corre-sponding fixed diameter pulleys.
Endles hexagonal belts for agricultural machinery and groove sections of corresponding pulleys
This International Standard specifies the principal charac-teristics of grooved pulleys (for the groove sections 9J, 15J, 20J and 25J) intended to take joined narrow V-belts for industrial power transmission drives. NOTES 1 The groove effective width is regarded as the basic dimension of standardization for the grooves and for the corresponding joined V-belts considered as a whole. 2 The pitch line position can only be given approximately. The approximate pulley pitch diameter can be calculated by the formula : dp 〓deff -2b nom.
Grooved pulleys for joined narrow V-belts. Groove sections 9J, 15J, 20J and 25J
This International Standard specifies the principal charac-teristics of synchronous endless belts for use in synchronous belt drives1) for mechanical power transmission and where positive indexing or synchronization may be required. The principal characteristics include : nominal tooth dimensions, standard length and width dimensions and tolerances; and length measuring specifications.
Synchronous belt drives. Belts
This International Standard specifies the principal dimensions of grooved pulleys for classical V-belts (sections Y, Z, A, B, C, D and E) and narrow V-belts (sections SPZ, SPA, SPB and SPC). It is important that narrow belts are not used with pulleys uniquely designed for classical belts.
Grooved pulleys for classical and narrow V-belts
This International Standard laysdown the main dimensions of endless variable-speed V-belts intended for use on agricultural machinery (and, in particular, harvester-thresher machines), together with the groove section of the corresponding fixed- or variable-diameter pulleys.
Agricultural machinery. Endless variable-speed V-belts and groove sections of corresponding pulleys
Flat belt drives. Dimensions of belts and pulleys. Adjustment of centres
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