Page 26 of catalogue Bearing Technology for Rail Vehicles of Schaeffler Technologies GmbH & Co. KG

Service

Testing Center and Test Rigs

The reliability of the bearings under extreme conditions is tested on the railway bearing test rigs. Special axlebox bearing test rigs are used to test the bearings according to DIN EN 10. The test rigs simulate running speeds of up to 550 km/h and wind speeds of up to 10 km/h. These tests have led to considerable increases in the operating life and maintenance intervals of the rolling bearings. A kilometer reading of 1. million kilometers, depending on the operating conditions, is standard today for bearings in main-line railway vehicles. The function of completely assembled bearings as well as specific individual components and materials is tested in our Schweinfurt plant, in a facility covering approximately 7,000 m. Around 700 orders are completed annually on 100 different types of test rigs developed in-house for bearings of various designs and sizes. Test Rig for Wheelset Workshops This new wheelset test rig offers special benefits to the customer. Due to its design, the bearings no longer have to be dismounted to be tested, which saves time. Rolling bearing diagnostics is carried out by means of structure-borne sound (vibration generated when rolling over damaged areas).

By measuring the vibrations in the axlebox bearings, it is possible to recognize any occurring fatigue or cracks in the raceways or the rolling elements. Measurements and measurement data analysis is carried out by a computer-assisted rolling bearing diagnosis system. The measurement results are stored on a computer and can be compared later during subsequent checks carried out on the same wheelset. FAG FE8 Lubricant Test Rig FE lubricant test rig for preselecting and testing greases and oils according to DIN 511, part of EN 101.

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