What is ISO 12297‑1 about?

ISO 12297‑1 is the first part of the multi-series that is applicable to rolling bearings on cylindrical rollers.

ISO 12297‑1 specifies nominal boundary dimensions, geometrical product specifications (GPS) and tolerance values for finished steel cylindrical rollers for rolling bearings. The maximum roller diameter is 40 mm.

Note: Annexes A and B give the sorting principles for roller diameter and roller length tolerances and gauges, respectively.

Who is ISO 12297‑1 for?

ISO 12297‑1 on cylindrical rollers is useful for:

Manufacturers of rolling bearings
Manufacturers of cylindrical rollers
Mechanical engineers
Manufacturers of applications such as gearboxes, wind turbines, electric motors etc

Why should you use ISO 12297‑1?

The load-carrying capability of roller bearings is larger than that of ball bearings. As a result, roller bearings, such as cylindrical, tapered, or spherical roller bearings, have become the default choice for handling radial stresses. Roller and cylindrical bearings are a type of rolling-element bearing in which the moving elements of the bearing are split by cylinders.

ISO 12297-1 specifies nominal boundary dimensions, geometrical product specifications (GPS), and tolerance values. Adopting a standardised framework for designs can make sure components in assemblies are aligned. By meeting these standardised specifications, you can also impart uniformity and consistency to the manufacturing processes, thus catering to a wide range of engineering needs.

Overall, the ISO 12297-1-compliant guidance on dimensions can provide excellent service despite rapid acceleration, temperature or load, assisting in improved performance of the end-use application.

What’s changed since the last update?

ISO 12297‑1:2021 supersedes BS ISO 12297:2012, which is withdrawn. ISO 12297‑1:2021 includes some technical changes with respect to BS ISO 12297:2012. These include:

The geometrical product specification (GPS) system has been introduced into the document
The document was revised editorially

BS ISO 12297-1:2021

Rolling bearings. Cylindrical rollers - Boundary dimensions, geometrical product specifications (GPS) and tolerance values for steel rollers

Current

Published:

31 Dec 2021