bevel gear

The maximum pressure that any solid can withstand is, by definition, its Ultimate Tensile Stress.

It depends how big it is...and the material it is made from.

You should be more specific: which pressure and where is it applied ?

It should be good to specify the type of bevel gear you consider.

When you give details you have a chance to get a specific answer and not a general one.

While I was emissions testin at a power plant (coal fired) we toured the plant, and they had some pretty big BG's. I didn't think to ask what kind of pressures(?) they were withstanding.

Now as I recall the primary purpose of the BG is to change the direction of transfer of power more so than to gain a significant advantage through gear ratio, though obviously it is possible.

Again if my memory serves me, a bevel gear has an inverse(?) relationship between RPM and torque as a result of the conical design, unlike say a worm gear or similar drive arrangements.

Since this was such a shoddy (no offense to poster, just not well presented) question I thought that I would open the door for full dialouge while trying to get the OP to repost with more info. You know - "twoforoneocity"

cr3

If you look at a differential in most of the cars you find that the goal of the bevel gear is not only to change the direction of the power transfer. The conical gears have ratios of 5 to 8 depending on the design. Bevel gears behave as any other gear. At the meshing cone the speeds are the same since sliding does not occur( i do not speak about the flanks where a sliding occurs). The tangential forces are equal on both gears (action and reaction at contact point). Since power is the product of torque and speed and it is constant the speeds and torques enjoy the mentioned inverse proportionality which is valid for all transmissions be geared or friction. Of course if the losses are neglected.