Ultrasonic testing is not possible on edge zones of sliding surface, flange sides, joint areas, oil holes, grooves, etc. A noisy application might be caused by wavy bearing components, local defects in the rings and balls or by dirt particles in the bearing. Non-contact bearings based on acoustic/ultrasonic levitation are investi-gated in this thesis. ULTRASOUND TESTING FOR LEAK DETECTION. Ultrasonic testing Ultrasonic testing (UT) is a series of nondestructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. Operating condition of test bearing was examined by 2MHz longitudinal wave probe, piezoelectric element diameter is 10mm, attached to the outside of the steel housing by sound adhesives. c. Flooding of or lack of lubricant. Ultrasound technology is arguably better than more traditional bearing inspection methods at identifying problems at the earliest possible stage and crucially, pinpointing the precise location of the fault. They can detect even airborne sound waves from the equipment and many motor NDE bearings. Testing of Babbitt Bearings and Seals From dye penetrant to ultrasonic inspection, we offer documented inspection and testing of Babbitt bearings and seals. bearing inspection, testing gears/gearboxes, pumps, motors, steam trap inspection, valve testing, detection of cavitation, testing for arcing, tracking, corona in electrical apparatus, compressor valve analysis and Wear Mark A. Goodman, VP E ngineering UE Systems, Inc. 14 Hayes Street Elmsford, NY 10523 Ph: 914 -592-1220 Fax: 914 -347-2181. In ball bearings, as the metal in the raceway, roller or ball elements begins to fatigue, a subtle deformation begins to occur. Another scenario in which ultrasound may be used first over vibration analysis is with the monitoring of slow speed bearings. Test and measuring equipment; Noise and vibration testers; Noise and vibration testers. c. Flooding of or lack of lubricant. the bearing metal and the backing. Nondestructive Testing (NDT) Open Access Archive, Database, Conference Proceedings, Journal Articles, News, Products, Services. implemented an ultrasonic bearing testing program to supplement infrared data and images, proving to the customer that testing for motor bearing failure is very worthwhile, and that, once again, the infrared pictures don't lie. in a range of less than half the diameter of the ultrasonic probe because of undefined reflections. The beginning of fatigue failure. Hi Walt and Jim, since Jim posted "Please NO generic ultrasound manufacturers answers" in his original post, I have sat back and kept quiet. Ultrasonic Testing (UT) uses high frequency sound energy to conduct examinations and make measurements. This specification enforces a 0.5 mm flat bottom hole (FBH) as calibration reflector which imposes the highest requirements on the mechanical precision. However, with new engine manufacturing processes such as laser welding, brazing and coating, many parts have become extremely complex to inspect before and after repairs. The same applies to bearings with dovetail keying grooves at the bond. Detection of Partial Discharges . The on-board Spectralyzer on the Ultraprobe 15000 allows for a sound spectrum overview on the testing point – a great help when inspecting slow speed bearings. Ultrasonic inspection of bearings is useful in recognizing: a. As a symbiotic companion to vibration analysis, ultrasound delivers a more complete picture about the health of rotating assets. Using the Total Focusing Method to Improve Phased Array Ultrasonic Imaging. 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