Recent content by Gearen

Hi, I am working for a truck manufacturer so we make big gears. Big gears that are not good to have on you desk and play around with. So, I am looking for gears that you can easy hold in your hand when you want to show and explain gears to somebody or if you yourself are thinking about how...

I found the AGMA information sheet about shotpeening of gears http://webstore.ansi.org/ansidocstore/product.asp?sku=AGMA+938-A05 It is a very nice text which I can recommend. It says that sharp corners need to be rounded before shot peening to avoid edge rollover which I guess is my problem...

Hi, As I understand it there is an old rule about full recess action gears. If the pinion has all addendum and it is driving the gear it will run smoothly but if the gear then drives the pinion it will be much problems. This comes mostly from old books (1960 and earlier) but I haven't seen it...

ops, sorry about. Mixed up epicyclic and elliptical :)

I noticed that there is a design manual for epicyclic gears. ANSI/AGMA 6123-B06, Design manual for enclosed epicyclic gear drives

Helicoil? http://www.contractorstools.com/helicoil1.html

As I understand the question you have a cylinder which is rotating around its axis and you want to stop it. The cylinder will have a kinetic energy when its rotating. To stop it it will take an equal amount of energy. The size of the torque to apply to stop it will depend on how fast you want...

Thank you very much mapi. I had been looking around like crazy to find how you define your own stiffness matrix in abaqus and your pointer to the uellinea.inp got me on the right way. It soo simple and obvious when you see it but I couldnt find it in the manual. I always ended up in substructure...

Oh my, that was really an interresting theory. You say case depth build a corner and thats why you get more retained austenite. Is that because you get more carbon atoms to that place (coming both from the flank and the top) and more carbon gives more retained austenite? The subzero treatment...

swall I am not so good when it comes to material science but I think 20-30 % is what we have.

Hi, We have been trying shot peening on our hypoid gears to increase their fatigue life. However, a big problem in manufacturing has turned up. With shot peened gears we get very bad and fluctuating contact pattern when the gears are assembled. This seems to be due to a bulge at the tip of the...