ISO-3548 Historical Revision Information
Plain Bearings - Thin-Walled Half Bearings With or Without Flange - Tolerances, Design Fea

ISO-3548 - 2ND EDITION - SUPERSEDED -- See the following: ISO-3548-1
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This International Standard specifies tolerances, design features and test methods for thin-walled half bearings with integral flange up to an outside diameter of Do of 250 mm and without flange up to an outside diameter of Do of 500 mm. Due to the variety of design it is, however, not possible to standardize the dimensions of the half bearings.

Half bearings according to this International Standard are predominantly used in reciprocating machinery and consist of a steel backing and one or more bearing metal layers on the inside.

In reciprocating machinery, flanged half bearings may be used in connection with half bearings without flange.

Alternatively to serve as a flanged half bearing, it is possible to use a half bearing without flange together with two separate half thrust washers in accordance with ISO 6526; or a half bearing with assembled flanges.


To find similar documents by classification:

21.100.10 (Plain bearings)

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Document Number

ISO 3548:1999

Revision Level




Publication Date

Dec. 1, 1999

Committee Number

ISO TC 123/SC 3