h1

Flush Cock Valves

August 25, 2017

A video explaining the advantage of flush cock valves manufactured by TRI Transmission and Bearing Corp. has been published to YouTube.

h1

When shafts rub

July 12, 2017

It is undesirable to have a shaft to rub metal to metal with another machine components…but it happens. When it does, the question often asked is “Can the shaft be fixed?” It is easy enough to bring in an service that does field machining to fix the surface of the shaft, but the heat caused by a rub alters the shaft steel much like the heat affected zone that occurs during welding.

This video explains what happens with crystalline structures in steel when exposed to intense heat.

Below is a photo for a part that rubbed. Over 0.1″ has already been machined away and you can see the hard spot that still remains.Vaneplate-hardspot

 

h1

Installing the Rotating Element

May 11, 2017

A short animated GIF showing the rotating element of the Size 250 dual circuit fluid drive being installed in the TRI Transmission and Bearing Corp. shop

TimeLapseInstall.gif

h1

Technical Note By Dr. Mel, May 2017

May 3, 2017

Dr. Mel has released a new Tech Note, “Improved Competiveness for Conventional Coal and Gas Fired Power Plants”. This new tech note explores the opportunities to extend the life of traditional power plants. Read more…

h1

Flush Cock Valves

April 27, 2017

Flush cock valves are used for situations where it is absolutely critical that a valve that can shut off the lube oil flow cannot be operated when the lube oil system is pressurized and in service.

FlushCockValveAssembled

TRI Manufactures flush cock valves for turbine generator lube oil systems. These valves can block or divert oil, but the are specifically designed not be operable while the system is under pressure.

For more information: http://turboresearch.com/products/flush-cock-valves

h1

Fluid Drive Upgrades

April 25, 2017

TRI has new tilt pad bearing designs for upgrades to the Size 270 Dual Circuit Fluid Drive. These bearings replace fixed bore pressure dam bearings and are essential for vibration control under high torque conditions.

The image below replace the bearing and the bearing housing on the output-outboard end of the fluid drive. It’s a 6 pad bearing with 2 thermocouples in the bottom pad and vibrations probes at 45° off of the vertical center-line.

Size270DCFD-OPOB-640x640

The image below in the inboard bearing housing. This housing holds the pads for both the input-inboard bearing and the output-inboard bearing.

Size270DCFD-IB-640x640

 

h1

Lift Oil Pocket

January 13, 2017

A quick video of a lift oil pocket machined on a CNC mill. The pocket is a constant 0.045″ deep along the curved bore.