Investing in Journal Bearing Ball Ring Repairs

MD&A continues to invest in new facilities that enable us to expand our quality service and repair offerings. For example, our Bearings, Seals and Hydraulics division recently acquired a new horizontal bore machine at its Euclid, OH plant to enable delivery of precision ball ring repairs on journal bearings.  The horizontal bore machine, shown in […]

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Hydrogen Seal Upgrades

Hydrogen Seal Upgrades

MD&A Bearings, Seals & Hydraulics division stocks a large quantity of hydrogen seals at our Euclid, OH facility, and we can service any size of machine. If we don’t have the seals in stock, our skilled technicians can fabricate them using material we have in the shop. When a customer orders a set of hydrogen […]

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DFLP Rotor Straightening and Machining

DFLP Rotor Straightening

Mechanical Dynamics & Analysis was contracted to straighten and machine a double flow low pressure (DFLP) rotor from a 3,600 rpm, 103 MW combined cycle power generating unit. The rotor forging arrived with both shaft ends bent. The Turbine end shaft end was bent and found to have a 0.007” total indicator runout (TIR) at […]

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Generator Rotor Stub Shaft Repair

Generator Rotor Stub Shaft Repair

Mechanical Dynamics and Analysis (MD&A) was retained by a utility to perform a stub-shaft repair of a generator rotor collector-end shaft. The customer reported that the generator rotor had suffered a collector ring failure and also a ground to the main shaft. Major arcing and heat damage occurred to the generator rotor forging shaft. The […]

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Diaphragm Dishing Repair

Mechanical Dynamics and Analysis inspected and repaired a stage 15 dished diaphragm. The unit was an upgraded 297.5 MW D6 frame unit. The stage 15 diaphragm was found to be dished downstream by approximately 0.215”. MD&A’s Turbine-Generator Repair Facility performed a dishing repair to the stage 15 diaphragm by cutting out the old weld, re-positioning, […]

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Mechanical Dynamics & Analysis LLC   |   19 British American Blvd., Latham, NY 12110   |   P (518) 399-3616   |   F (518) 399-3929