ISO/WD 25994

Spherical plain bearings — Self-lubricating bearings of PTFE fabric liner type

General information

20.60   Close of comment period   Aug 30, 2026

ISO

ISO/TC 4/SC 7 Spherical plain bearings

International Standard

Scope

This document specifies boundary dimensions, tolerances, internal clearances, and other technical requirements for self-lubricating spherical plain bearings of PTFE fabric liner type. Three types of these bearings are included as below:
1) self-lubricating radial spherical plain bearings only with split outer ring;
2) self-lubricating angular contact spherical plain bearings;
3) self-lubricating thrust spherical plain bearings.

Life cycle

NOW

IN_DEVELOPMENT
ISO/WD 25994
20.60 Close of comment period
Aug 30, 2026