# ISO 12131-1:2001 — Withdrawn and superseded ISO standards

For ISO 12131-1:2001, item title is Plain bearings — Hydrodynamic plain thrust pad bearings under steady-state conditions — Part 1: Calculation of thrust pad bearings; status code is 9599; successor is ISO 12131-1:2020; withdrawn / published date is 2001-04-25, recorded from its source on 2026-08-05.

- **Identifier:** ISO 12131-1:2001 _(verified: appears in the quote below)_
- **Item title:** Plain bearings — Hydrodynamic plain thrust pad bearings under steady-state conditions — Part 1: Calculation of thrust pad bearings _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 12131-1:2020
- **Withdrawn / published date:** 2001-04-25 _(verified: appears in the quote below)_

## What the source says

> 20999,IS,,ISO 12131-1:2001,Plain bearings — Hydrodynamic plain thrust pad bearings under steady-state conditions — Part 1: Calculation of thrust pad bearings,Paliers lisses — Butées hydrodynamiques à patins géométrie fixe fonctionnant en régime stationnaire — Partie 1: Calcul des butées à segments,2001-04-25,1,['21.100.10'],ISO/TC 123/SC 8,9599,,[77161],"['en','fr']",25,"<p>The aim of this part of ISO 12131 is to achieve designs of plain bearings that are reliable in operation, by the</p><p>application of a calculation method for oil-lubricated hydrodynamic plain bearings with complete separation of the</p><p>thrust collar and plain bearing surfaces by a film of lubricant [1].</p><p>This par

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).