Controlnovice, Like everyone including myself stated earlier there are those winning and those losing in the new global economy. You happen to be winning (keeping your job) but a visit to Saginaw MI, Flint MI, Detroit MI, Rockford IL, and many others to see the true cost of outsourcing...
What will become interesting as we helplessly watch this economic shift unfold, are the social changes. I personally do not mind downsizing and simplifying my own life, how far is the issue. Woe to the polititians who ignore the clout of the middle class. This November will demonstrate that...
The facts will remain to be seen in the next five to ten years, but most people now agree that reduced prices brought by globalization are not worth the sacrifices made by Americans today. Let alone the sacrifices made by the poor people creating all the junk we buy. My experience in the Machine...
AS many of you have stated the demise of manufacturing has been progressing for my entire 25 years in the machine tool business. The loss of companies like Ingersoll Milling Machine and many other machine builders has left a sadness every mechanical engineer should feel, whether or not you are...
Just as an update, upon installation of induction thru hardened gears, 48-52 RC, they quickly failed and cracked though the ringfedder bore which locks the gear to the shaft. Our gear calculations were performd by the vendor who provided the gears. We are now returning to the softer gears 28-32...
Diamondjim, The center distance is fixed between the rack and pinion. There are no counterbalance systems to assist in lifting the weight. The four corners are driven electrically with one 60 hp motor, and cross shafting out of gear reducers. The service men in the field are claiming the racks...
diamondjim, Please explain the long addendum and what is your opinion on the correct rack tooth form? Should we have a modified tooth that has a smoother transition with the gear? It appears the rack tooth, with a sharp corner is a virtual milling cutter wearing out the pinion teeth. The system...
The pinnions are auto lubed with Mobilux EP 0 Lithium multipurpose grease. They are currently pre-hardened 4130 28-32 RC. The wear on the teeth has been so severe the steel has been displaced off of the tooth sometimes up to .080-.100 deep, without shearing off the tooth? We plan to induction...
I have a pinnion of 21 teeth, 3 dia. pitch, 20 degree pressure angle, RC 28-32, 3" face width, climbing a rack which is RC 48-52 4130 alloy steel. The stroke on the lift is 40" 2x every 5 minutes is the travel at 10"/sec.
The four pinions carry approx. 9,000# each in the front and 6,000# each in...
