GREASES FOR ROLLER BEARING. TEMPERATURE MEASUREMENT IN ROLLER BEARINGS UNDER SERVICE CONDITIONS
When specifying a grease for roller bearings it is necessary to know over what temperature range the grease is required to operate. The temperature of the bearing can be affected by the following six factors 1. The speed of the vehicle, 2. The type of grease used, 3. The design of the bearing and axlebox, 4. The load on the axlebox, 5. The ambient temperature, 6. The degree of filling. In this report which describes practical trials the Committee has no influence on the filling ratio. Generally filling ratios of 50-60% are recommended by the bearing manufacturers and therefore this matter is not dealt with further in this report. The object of the present report is firstly to evaluate the effect of each of the remaining five factors on the temperature of the bearing; secondly to describe how temperature measurements may be carried out on axle bearings in service and to make a recommendation of how temperatures should be measured in axleboxes during trail runs. To achieve these objects the Committee carried out a test run with a loaded fish van in the hottest part of Europe in the middle of summer. Moreover many Administrations gave details of tests that they had carried out on various types of rolling stock. These results are analysed.
- Restrictions on the use of this document are contained in the explanatory material.
International Union of RailwaysOffice of Research and Experiments
- Publication Date: 1964-10
- Features: Figures;
- Pagination: 46 p.
- TRT Terms: Grease; Lubricants; Lubrication; Roller bearings; Tests
- Old TRIS Terms: Question e18
- Subject Areas: Maintenance and Preservation; Railroads;
- Accession Number: 00052778
- Record Type: Publication
- Source Agency: International Union of Railways
- Report/Paper Numbers: E18d/RP 3/E Intrm Rpt.
- Files: TRIS
- Created Date: Jul 8 1994 12:00AM