# ISO 255:1990 — Withdrawn and superseded ISO standards For ISO 255:1990, item title is Belt drives — Pulleys for V-belts (system based on datum width) — Geometrical inspection of grooves; status code is 9599; successor is ISO 255:2023; withdrawn / published date is 1990-11-08, recorded from its source on 2026-08-05. - **Identifier:** ISO 255:1990 _(verified: appears in the quote below)_ - **Item title:** Belt drives — Pulleys for V-belts (system based on datum width) — Geometrical inspection of grooves _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 255:2023 - **Withdrawn / published date:** 1990-11-08 _(verified: appears in the quote below)_ ## What the source says > 4154,IS,,ISO 255:1990,Belt drives — Pulleys for V-belts (system based on datum width) — Geometrical inspection of grooves,Transmissions par courroies — Poulies à gorges pour courroies trapézoïdales (système basé sur la largeur de référence) — Contrôle géométrique des gorges,1990-11-08,2,['21.220.10'],ISO/TC 41/SC 1,9599,[4153],[84167],"['en','fr']",7,
Specifies the methods of checking the regularity of the grooves and pulleys for V-belts. The grooved pulleys may be designed for use with classical or narrow V-belts. The groove details shall be specified by the dimensions shown in the figures 1 to 10.
## Source - https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv Last verified: 2026-08-05. Review by: 2027-02-01. Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).