WEAR & GRIP LOSS EVALUATION OF HIGH CHROMIUM WELDING DEPOSITS APPLIED ON SUGAR CANE ROLLS ABSTRACT Wear on sugar cane rolls is an expensive maintenance problem for the sugar cane industry. Wear produces loss of sucrose extraction and loss of grip of the roll on...
A Brazilian gearbox manufacturer had a mystery to solve in the giant drive system of a Brazilian sugar cane processing mill. The coupling at the gearbox is a special “overload coupling” and it broke repeatedly during the routine sugar mill process. The special...
Ariel Corporation was working on an issue with Rotor Bearing Technology & Software, Inc. (RBTS) for a company in Australia. Since its start up, the customer had experienced multiple elastomeric element failures in the drive coupling on their large coal bed methane...
Weeks after commissioning, a compressor unit tripped on high motor vibration. Upon inspection, cracks were found in the center piece of the coupling indicating a possible torsional vibration problem. The unit consisted of a 3150 HP induction motor operating at 894...
A TorqueTrak 10K user in a Gulf Coast refinery was having issues with their compressor train. The compressor train uses a synchronous motor drive in a hard start application. In that application, torque pulses occur from 120 Hz to 0 Hz during the transient start-up....
