ISO 76-2006 PDF

Full title and description

ISO 76:2006 — Rolling bearings — Static load ratings. This International Standard specifies methods for calculating the basic static load rating and the static equivalent load for rolling bearings manufactured from commonly used, high-quality hardened bearing steel and of conventional design; it also gives guidance on static safety factors for heavily loaded applications.

Abstract

ISO 76:2006 defines the calculation procedures for the basic static load rating and the static equivalent load applicable to rolling bearings within the size ranges of the relevant ISO bearing standards. The standard states limitations where contact area truncation, unusual load distribution (for example due to misalignment, preload or excessive clearance), or special surface treatments invalidate the calculation assumptions and recommends consulting manufacturers for such cases.

General information

• Status: Published (confirmed as current following systematic review).
• Publication date: May 2006 (Edition 3).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 21.100.20 (rolling bearings).
• Edition / version: Edition 3 (2006); amended by ISO 76:2006/Amd 1:2017.
• Number of pages: 14 (ISO published edition).

Scope

The standard applies to rolling bearings of conventional design and within the size ranges covered by the relevant ISO bearing standards. It provides formulae and definitions for determining the basic static load rating and the static equivalent load used in assessing bearing performance under static or near-static conditions. ISO 76:2006 excludes bearings and applications where considerable truncation of the contact area or atypical load distributions occur; in such situations the user should consult the bearing manufacturer for evaluation. Guidance on applying static safety factors for heavy loads is also included.

Key topics and requirements

• Definition and calculation method for the basic static load rating (C0).
• Procedure to compute the static equivalent load acting on a bearing.
• Assumptions and limitations: conventional bearing designs, typical hardened bearing steels, and normal load distributions.
• Guidance on static safety factors for heavily loaded applications.
• Notes on cases where calculations are not appropriate (truncated contact areas, misalignment, preload, special coatings) and recommendation to consult manufacturers.

Typical use and users

Engineers and designers specifying or analyzing rolling bearings, bearing manufacturers, application and maintenance engineers, and standards committees use ISO 76 to determine static load capacities, verify safety margins for static or shock-loaded conditions, and to ensure consistent assessment across designs and suppliers.

Related standards

ISO 76:2006 is the third edition replacing earlier versions of ISO 76 (for example the 1978 edition) and has an amendment published as ISO 76:2006/Amd 1:2017. It sits alongside other ISO standards covering rolling bearing performance and ratings.

Keywords

rolling bearings, static load rating, basic static load rating, static equivalent load, bearing design, static safety factor, bearing calculation, ISO 76.

FAQ

Q: What is this standard?

A: ISO 76:2006 is an International Standard that specifies methods for calculating the basic static load rating and the static equivalent load for rolling bearings of conventional design.

Q: What does it cover?

A: It covers calculation procedures, assumptions, limitations, and guidance on static safety factors for rolling bearings; it also notes application cases where the standard calculations are not appropriate and manufacturer consultation is required.

Q: Who typically uses it?

A: Bearing designers and manufacturers, mechanical and application engineers, maintenance professionals, and standards bodies use this standard to assess static load capacity and to ensure consistent evaluation of bearing suitability under static or near-static loads.

Q: Is it current or superseded?

A: The version in force is ISO 76:2006 (Edition 3), which was amended by ISO 76:2006/Amd 1:2017 and was last reviewed and confirmed as current in 2020. Users should check for any later revisions or confirmations from ISO before relying on the standard for new designs.

Q: Is it part of a series?

A: ISO 76:2006 is part of the body of ISO standards addressing rolling bearings and their ratings; it replaces earlier editions of ISO 76 and complements other bearing standards that cover dynamic load ratings and dimensional/specification details.

Q: What are the key keywords?

A: Rolling bearings; static load rating; static equivalent load; basic static load rating; bearing safety factor; bearing calculation; ISO 76.