Detaljer på forslag

Forslagstitel på sprog (en): Cylindrical gears – ISO system of flank tolerance classification – Part 2: Definitions and allowable values of double flank radial composite deviations
Nummer:DSF/ISO/DIS 1328-2
Type:Forslag
Kilde:ISO
Udvalg:S-588
Udvalgsnavn:Vindenergisystemer
Forslag udgivet:28. jan 2019
Kommentarfrist:27. mar 2019
Antal kommentarer:0
Beskrivelse af forslaget:This part of ISO 1328 establishes a gear tooth classification system relevant to double flank radial composite deviations of individual: – cylindrical involute gears; – sector gears. It specifies the appropriate definitions of gear tooth deviations, the structure of the gear tooth flank classification system, and the allowable values of the gear tooth deviations. The double flank radial composite classification system is comprised of 21 tolerance classes for total and tooth-to-tooth radial composite deviations of which class R30 is the most accurate and class R50 is the least accurate. NOTE – There is no correlation or interrelation between the classes specified in this part of ISO 1328 and other parts or standards such as ISO 1328-1 and its predecessor standards. This part of ISO 1328 uses a unique set of tolerance classes (i.e., R30 to R50) to reinforce that no correlation to other elemental or radial composite standards exists (see Annex C). The formulae in this part of ISO 1328 are applicable for reference diameters of up to 600 mm for gears with three or more teeth. This part of ISO 1328 provides formulae to calculate tolerances for individual product gears when mated in double flank contact with a master gear. Tolerance tables are not included in this part of ISO 1328, however, tolerance curves for some classes are shown in Annex A for a module 1.0 mm spur gear to visualize the characteristics of the classification system formulae . An optional tolerance for double flank radial composite deviation over multiple, k, teeth is described in Annex B. Annex C provides information on why the double flank composite tolerances were changed from the previous edition. Guidance with converting from old tolerance class values is provided in Annex D and example calculations are provided in Annex E. The measurement of product gear pairs in an assembly for a specific application is beyond the scope of this document. Gear design is beyond the scope of this part of ISO 1328. Surface texture is not considered in this part of ISO 1328. For additional information on surface texture, see ISO/TR 10064-4. With agreement between the purchaser and manufacturer, the tolerances may be applied to other types of gears such as cylindrical worms, worm gears, racks, and bevel gears. However, in these cases, modified procedures and associated measurement processes should be considered since this standard only describes procedures for parallel axis gears. See ISO/TR 10064-2 for additional information.

Du kan kommentere på alle dele af dette dokument. Forslag vises i ét af to formater:

PDF-version
HTML-version

Hvis du ser indholdsfortegnelsen i venstre side, er det HTML-formatet. For at kommentere skal du åbne de enkelte afsnit ved at klikke på afsnittet i indholdsfortegnelsen.

Hvis du i stedet bliver bedt om at downloade et dokument, er det PDF-formatet. Du skal åbne dokumentet i et separat vindue og derefter kommentere ved at angive afsnitsnummer eller -tekst i "Sektion". Der er mere vejledning, når du har klikket på "Læs forslag".

For at afsende kommentar til Dansk Standard, skal du klikke på "Send kommentar" for det aktuelle afsnit.. Hvis du ønsker at arbejde videre med dine kommentarer, skal du i stedet klikke på "Gem kommentar til senere redigering".

Du kan tilføje og ændre i gemte kommentarer, men hvis du sender kommentaren, kan du ikke vende tilbage for at redigere.

Hvis du har gemte kommentarer, som ikke er afsendt, vil du, før høringsperioden udløber, blive mindet om, at du har ikke-afsendte kommentarer.