Three shoulders.

[MBT]

Is that okay?

I think you're gonna have to warm up a lot but a lot of those bearings...
and cool so much, but so much the tree.
Maybe the liquid nitrogen isn't enough... :redface:
You're gonna have to get close to zero.

 

[enaud]

so you will never mount it....

Hi.

how to change it?

 

[enaud]

I think you're gonna have to warm up a lot but a lot of those bearings...
and cool so much, but so much the tree.
Maybe the liquid nitrogen isn't enough... :redface:
You're gonna have to get close to zero.

If you tell me how to change it and what to add maybe it's better than you say?

 

[MBT]

come modificarlo?

If you tell me how to change it and what to add maybe it's better than you say?

Look, as I'm of the idea that "if I see I understand, but if I'm wrong I learn," I won't give you a solution.
I invite you to do something very simple.
Since you have made the design in autocad, extract the details of tree, bearings and spacers.
then "mima" as you will insert them and mentally describe (or on the forum if you want) the steps, step by step.
you will immediately discover the error and identify a possible modification on which we will discuss

 

[enaud]

Look, as I'm of the idea that "if I see I understand, but if I'm wrong I learn," I won't give you a solution.
I invite you to do something very simple.
Since you have made the design in autocad, extract the details of tree, bearings and spacers.
then "mima" as you will insert them and mentally describe (or on the forum if you want) the steps, step by step.
you will immediately discover the error and identify a possible modification on which we will discuss

I don't understand, except that the design is just a draft made on "paint" just to make you understand... then I said that the professor did not explain anything about it and so I was looking for suggestions on how to mount the bearings.... from that post that you posted me before I found 100000 different ways to mount them but I did not understand what is right and what not because to every posted design there was always someone who said it was not good...

 

[MBT]

I rewrite it in clearer words. . .
how do you do to insert the bearings if the shaft has the shouldering on both sides and if the shouldering is (by definition) greater than the inner diameter of the bearing? ? ? ?
numerically explained. . .
if the shaft is from 100 and the 120 shouldering, how caspita does the bearing with hole from 100 to "cross" the 120 shouldering to get to its seat? ? ? ?

 

[enaud]

then I would say of the first bearing then the spacer, the wheel and finally the second bearing with a ring or a rosette

 

[MBT]

Better.
at this point read what was written in the discussion suggested by bandbassotti.http://www.cad3d.it/forum1/showthread.php?t=17122&highlight=alberoyou will find ideas and ideas

 

[Focus]

then I would say of the first bearing then the spacer, the wheel and finally the second bearing with a ring or a rosette

there are many ways to mount that axis, but keep in mind that a ø21 tree will never pass into a ø20 hole and remember to fix everything axially (seeger, wreath, etc.).

Hi.

 

[zeigs]

that for duty of record is slightly lower than d1....

Well, that is the minimum diameter of the recommended shouldering. I usually stop at d1 to be sure not to crawl anything

other than that, ask for lumen to the professor? It's there. Otherwise tell him to post here that I tell him what he has to explain to you about the bearings. . .

quoto again mbt on trying to make a piece-by-piece assembly: you immediately notice what is wrong.
tip: you can start from the right or from the left or from both to mount, but to the outside the diameters of the tree can only decrease (those of calettamento, obvious, a possible discharge instead si)

 

[enaud]

thanks to all

 

[Focus]

reasoning is not difficult:finger: