BS 4480-8:1984

This standard BS 4480-8:1984 Plain bearings: metric series is classified in these ICS categories:

• 21.100.10 Plain bearings

This International Standard lays down the main dimensions and tolerances for thin-walled flanged half bearings used in reciprocating machinery. It is not expected that all flanged half bearings with the main dimensions listed will be available from stock but adoption of standard sizes should lead to economies in tooling costs.

The main dimensions and tolerances are fixed for a series of thin-walled flanged half bearings suitable for housings having inside diameters from40 to 250 mm. Flanged half bearings for larger or smaller inside diameters are only rarely used.

This International Standard also lays down dimensions and tolerances for characteristics features of thin-walled flanged half bearings. The introduction of such features into a particular design is a decision that shall be made by the user in the light of his knowledge of the application. Flanged half bearings are generally used in connection with half bearings without flange according to ISO 3548.

Alternatively to serve as a flanged half bearing, it is admittedly possible to use a prefitted assembly of a half bearing without flange with two half thrust washers, the specifications of which should be agreed between user and manufacturer, taking acount of ISO 3548 and ISO 6526.

NOTE All the dimensions and tolerances are expressed in millimetres unless otherwise indicated.

Specifies the main dimensions and tolerances for thin-walled flanged half bearings used in reciprocating machinery, suitable for housings having inside diameters from 40 to 250 mm.