RSIME Railcar Bearing Tester
RSIME designed and built a bearing tester to evaluate rail vehicle bearings. It was designed to simulate the static load of a loaded or empty railcar on the bearings, this was accomplished with hydraulic rams. A 50 horsepower motor turns an axle with four testing bearing mounted on. A vector inverter motor controller allows testing to be done at any speed, up to 100+ mph. A torque sensor measures and records the bearing torque of the course of the test. Bearing temperatures are also measured using a data acquisition system. Two large fans simulate the cooling effect of air rushing past the bearings like when a railcar is traveling down the track.
RSIME Bearing Tester: Side View
RSIME Bearing Tester: Back Side View
RSIME Bearing Tester: End View
RSIME Bearing Tester: Axle Turning
Doug Marsh is shown machining a test axle used with the bearing tester.