Plain bearings. Tolerances - FitsWhat is ISO 121291 Plain bearings about? ISO 12129 is an International Standard that discusses plain bearings. ISO 121291 is the first part of the multi series of documents applicable to tolerances of plain bearings. ISO 121291 specifies a system of fits applicable to metallic plain bearings used in general engineering for mean relative bearing clearances, m, of 0,56 up to 3,15%. Note: This system of fits is not applicable to halfbearings and bushes

ISO 21873‑2 on the safety of mobile crushes used in building construction is useful for:

Types of inspections and inspections documents

The gasses carried in these pressure drums are used by many and varied industries

client representatives

Retail outlets e

recognizing trends in the industry

Emergency signs

BS 9250 provides guidance for dwellings and domestic buildings on the selection of materials

High-strength structural bolting assemblies for preloading - Part 2: Suitability test for preloading

French alphabetical index (Index alphabétique)

radiological and acoustic techniques have been added

It also gives guidance on matters of common interest to any business supplying or purchasing products