SIST ISO 6525:2020

Name: SIST ISO 6525:2020 — Plain bearings - Ring type thrust washers made from strip - Dimensions and tolerances
SKU: SIST ISO 6525:2020
Price: 19800 RUB
Availability: InStock

Plain bearings - Ring type thrust washers made from strip - Dimensions and tolerances

Название (английский):

SIST ISO 6525:2020

Plain bearings - Ring type thrust washers made from strip - Dimensions and tolerances

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 11 июня 2020 г.
ICS:: 21.100.10
Технический комитет:: ISEL - Mechanical elements

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Описание (английский):

This document specifies a range of ring type thrust washers for general purpose use with wrapped bushes as specified in ISO 3547 (all parts). It applies to thrust washers having inside diameters from 6 to 80 mm. NOTE It is not expected that all the sizes listed will be available from stock but the standardization of sizes is aimed at making economies in tooling costs.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты SIST

Overview - ISO 6525:2018 (Plain bearings, ring type thrust washers)

ISO 6525:2018 specifies the dimensions and tolerances for ring type thrust washers made from strip, intended for general‑purpose use with wrapped bushes as specified in ISO 3547. The standard covers unsplit ring thrust washers that fit into a housing recess to accept axial thrust and provide axial location for a rotating shaft. It applies to washers with inside diameters from 6 mm to 80 mm and is aimed at harmonizing sizes to reduce tooling costs (not all sizes are necessarily stocked).

Key topics and technical requirements

Scope and definitions - Clear terms (e.g., ring type thrust washer) and symbolic notation for size parameters.

Dimensions and tolerances - Standardized nominal values for inside/outside diameters, washer thickness, pitch circle and dowel hole positions; tolerances are specified (including reference to fits such as G10 for certain diameters).

Recess and location - Washers are normally located in a housing recess and retained against rotation by a dowel (alternatively lug or tab). Recess corners should be sharp or undercut to avoid interference with washer corners.

Oil grooves - Provision for oil grooves by agreement between user and manufacturer. Grooves primarily feed lubricant; typical grooving arrangements are illustrated. For bimetallic linings, groove depth should preferably be less than the lining thickness. Sharp groove edges must be removed.

Flatness - Ungrooved washers must meet a flatness requirement: they shall slide between parallel plates set at e + p, where p = 0.10 mm for washers up to 80 mm outside diameter and p = 0.12 mm above that size. Flatness is not specified for grooved washers due to distortion from grooving.

Edges and finishing - All sharp edges shall be removed; finishing and deburring requirements are stated to ensure assembly safety and fit.

Applications and who uses this standard

Bearing manufacturers and fabricators of plain bearings and thrust washers

Design and mechanical engineers specifying thrust surfaces in rotating machinery

OEMs in automotive, industrial gearboxes, pumps, compressors and agricultural equipment

Purchasing and quality assurance teams ensuring interchangeability and correct tolerances

Toolmakers and production planners aiming to standardize tooling and reduce costs

Practical benefits include improved interchangeability with wrapped bushes (ISO 3547), predictable assembly fits, simplified procurement, and lower tooling/production costs.

Related standards

ISO 3547 (all parts) - Wrapped bushes (explicitly referenced for compatibility)

Prepared by ISO/TC 123 (Plain bearings), Subcommittee SC 3 (Dimensions, tolerances and construction details)

Keywords: ISO 6525:2018, plain bearings, ring type thrust washers, dimensions and tolerances, wrapped bushes, ISO 3547, oil grooves, flatness, dowel, thrust washers.

SIST ISO 6525:2020

Abstract

Похожие стандарты

Overview - ISO 6525:2018 (Plain bearings, ring type thrust washers)

Key topics and technical requirements

Applications and who uses this standard

Related standards

Технические детали

ISO 6525:2018

Plain bearings — Ring type thrust washers made from strip — Dimensions and tolerances

SIST ISO 3547-5:2021

Plain bearings - Wrapped bushes - Part 5: Checking the outside diameter

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