This part of ISO 7148 specifies tribological tests of metallic bearing materials for plain bearings under conditions of boundary lubrication.
The test procedures, described in this part of ISO 7148 enable the friction and wear behaviour of bearing material/mating/lubricant combinations to be compared with that of other combinations, thus facilitating the selection of a bearing material for running repeatedly or for long periods under conditions of boundary lubrication, low speed and continuous sliding. Owing to differences in test conditions, measured friction and wear values can be expected to vary from one test facility to another.
The test results give useful information for practical application only if all parameters of influence are identical. The more the test conditions deviate from the actual application the greater will be the uncertainty of the applicability of the results.
ISO 7148-1:1999 history
2012ISO 7148-1:2012 Plain bearings - Testing of the tribological behaviour of bearing materials - Part 1: Testing of bearing metals
1999ISO 7148-1:1999 Plain bearings - Testing of the tribological behaviour of bearing materials - Part 1: Testing of bearing metals
1985ISO 7148-1:1985 Plain bearings — Testing of the tribological behaviour of bearing materials — Part 1: Testing of the friction and wear behaviour of bearing material/mating material/oil combinations under conditions o