PROBLEM Our customer needed to connect an existing gear and water jet. This installation had two different flange connections, neither of which matched standard universal joint flanges. SOLUTION We reviewed the application to identify the proper size shaft, then evaluated the flange configurations. We […]
Read MorePROBLEM Our water treatment plant customer operates several settling tanks with slow moving chain driven conveyors. Their original spring-loaded arm chain tensioner did not provide proper tension. As a result, they did not have good contact between the chain and sprocket teeth. Over time […]
Read MorePROBLEM A municipality operated a number of pumping stations to control flooding. The pumps were driven by diesel engines. Over the years, reverse water pressure back-drove the pump and engine resulting in equipment damage. SOLUTION We reviewed the installation and found we had limited […]
Read MorePROBLEM The Water Treatment Industry uses large slow paddle wheel flocculators to mix chemicals in the treatment process. These slow, high torque drives are subject to several overloads, which will break couplings, damage paddles or shear shafts. Just getting the large paddles started in […]
Read MorePROBLEMA large wastewater treatment facility has several process tanks, which contain large, slow moving, mixing arms. The nature of the design results in some occasional large overloads. The original design included shear bolts. The operators quickly figured out that a heavy bolt reduced the […]
Read MorePROBLEM A power plant had several large fans in their system. Unfortunately, the idle fans pin-wheeled in the reverse direction due to ambient airflow, even when the dampers were closed. When the idle fans were started, a significant chock load resulted in rolled keyways […]
Read MorePROBLEM Power generating stations are particularly sensitive about outages. Being able to properly schedule equipment maintenance is the key to successful operation. SOLUTION A public utility installed counters and hour meters on every piece of rotating equipment. They were then able to track every […]
Read MorePROBLEM A processing plant runs a large inclined conveyor to feed the entire operation. A large holdback clutch prohibits the loaded belt from reversing which would be disastrous. Because of the critical nature of this installation, they have two units on the head shaft, […]
Read MorePROBLEM After 25 years of operation, the hydraulic drum brakes on the roll stands had become a high maintenance item. Additionally, it had become increasingly difficult to maintain consistent tension control. SOLUTION A careful review of the application was necessary to determine the required […]
Read MorePROBLEM A large paper mill operates a 500 HP drive running a 15′ diameter steam roll at 800 RPM. Due to the layout of the process, a significant shaft offset existed necessitating the use of a universal shaft. During operation, they noticed a vibration. […]
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