This part of ISO 3547 specifies dimensions of lubrication holes, grooves and bore indentations on wrapped bushes made of solid and multilayer bearing material for application as plain bearings.
Wrapped bushes with lubrication holes, lubrication grooves or lubrication bore indentations in accordance with this part of ISO 3547 can be ordered with dimensions in accordance with ISO 3547-1 and made from materials in accordance with ISO 3547-4.
Lubrication holes, grooves and bore indentations may be executed in the flat strip metal prior to rolling. Dimensional changes brought about by the rolling of the strip metal are permissible. Marks of lubrication grooves and bore reliefs produced by stamping may appear on the back of the bush. Small cracks in the bearing material in lubrication grooves and bore indentations are permissible, provided that no small pieces become detached.
Series C bushes in accordance with ISO 3547-1:1999 may exhibit swelling running along either side of the lubricating grooves caused by the stamping operation.
See ISO 3547-2 for details of the test data for the inside and outside diameter.
The dimensions without tolerances are for guidance only and may, like the dimensions which are not stipulated, be executed differently at the discretion of the manufacturer.
ISO 3547-3:1999 history
2017ISO 3547-3:2017 Plain bearings - Wrapped bushes - Part 3: Lubrication holes, grooves and indentations
2006ISO 3547-3:2006 Plain bearings - Wrapped bushes - Part 3: Lubrication holes, grooves and indentations
1999ISO 3547-3:1999 Plain bearings - Wrapped bushes - Part 3: Lubrication holes, lubrication grooves and lubrication indentations