BS ISO 11687-2-2020 PDF

Full title and description

STB BS ISO 11687-2-2020 — Plain bearings — Pedestal plain bearings — Part 2: Side flange bearings. This document defines the design characteristics and dimensional guidance for side flange (pedestal) plain bearings and associated shaft characteristics, intended primarily for use in electrical and turbo engineering equipment.

Abstract

This part of ISO 11687 specifies design characteristics for side flange bearings for the size range 9 to 28, and includes corresponding design characteristics for shafts. It is intended to ensure interchangeability and clear designation of side flange pedestal plain bearings used mainly in electrical and turbo engineering industries.

General information

• Status: Published (International Standard; confirmed on periodic review).
• Publication date: June 2020 (ISO); national adoption as BS ISO 11687-2:2020 published 16 June 2020.
• Publisher: International Organization for Standardization (ISO). Also published/adopted by the British Standards Institution as BS ISO 11687-2:2020.
• ICS / categories: 21.100.10 — Plain bearings.
• Edition / version: Edition 2 (2020).
• Number of pages: ISO original: 8 pages; BS (national adopted) publication typically includes national foreword/annex and is listed as 16 pages in BSI-published copies.

Scope

This part of ISO 11687 specifies the classification, principal dimensions and design characteristics for side flange (pedestal) plain bearings in the size range 9 to 28 and gives associated shaft design characteristics. The scope is limited to bearings used mainly in electrical and turbo engineering industries and intended to support standardization of bearing dimensions and designation for interchangeability.

Key topics and requirements

• Specification of size ranges and designation conventions for side flange pedestal plain bearings (sizes 9–28).
• Principal dimensional characteristics (mounting features, flange geometry) required for interchangeability.
• Design characteristics for mating shafts to ensure proper bearing fit and performance.
• Materials and basic guidance on bearing use in electrical and turbo engineering applications.
• Alignment with other parts of ISO 11687 series (common terminology and interfaces across pillow blocks, centre- and side-flange bearings).

Typical use and users

Mechanical, electrical and turbomachinery designers and engineers, bearing manufacturers and suppliers, procurement and maintenance teams, and standards/quality engineers use this standard to specify, produce, select and verify pedestal plain bearings (side flange type) for rotating equipment where standardized dimensions and interchangeability are required.

Related standards

ISO 11687 is a multi‑part series addressing pedestal plain bearings. Relevant related parts include ISO 11687-1:2020 (Pillow blocks) and ISO 11687-3:2020 (Centre flange bearings). This part (‑2) replaces the earlier ISO 11687-2:1995 edition. National adoptions (for example BS ISO 11687-2:2020) are identical/adopted versions of the ISO text with national forewords.

Keywords

plain bearings; pedestal plain bearings; side flange bearings; pillow blocks; bearing dimensions; shaft design; interchangeability; ISO 11687; BS ISO 11687-2:2020; electrical engineering; turbo engineering.

FAQ

Q: What is this standard?

A: ISO 11687-2:2020 (published and also adopted as BS ISO 11687-2:2020) is the international standard that specifies design characteristics for side flange (pedestal) plain bearings, including principal dimensions and matching shaft characteristics for sizes 9–28.

Q: What does it cover?

A: It covers classification, key dimensions, designation and design guidance for side flange pedestal plain bearings and associated shafts, aimed at ensuring interchangeability and common design practice primarily for electrical and turbo engineering equipment.

Q: Who typically uses it?

A: Bearing manufacturers, mechanical and rotating‑equipment designers, maintenance and procurement engineers, and standards committees use it to specify and select standardized pedestal plain bearings.

Q: Is it current or superseded?

A: The 2020 edition (Edition 2) is the current ISO edition; it replaced the 1995 edition. The ISO record indicates the publication was reviewed and confirmed in subsequent systematic review cycles, and national adoptions (for example BS ISO 11687-2:2020) mirror the ISO text.

Q: Is it part of a series?

A: Yes — ISO 11687 is published in multiple parts addressing different pedestal plain bearing types: Part 1 (pillow blocks), Part 2 (side flange bearings) and Part 3 (centre flange bearings), among any other related parts. These parts share common objectives for interchangeability and dimensional coordination.

Q: What are the key keywords?

A: Plain bearings; pedestal bearings; side flange; bearing dimensions; shaft design; interchangeability; electrical engineering; turbo engineering; ISO 11687; BS ISO 11687-2:2020.