full listing model

[Michelefi]

Sorry it's been a while since I don't take care of these things and I ask vein for my ignorance about it, but I should quote this model, starting from the knowledge of the bearing. For now I've only managed to find the tolerance on the bearing (p6)... but I couldn't find the right coupling on the tree. I wonder to quote everything, with roughness, smoothness and fittings.
I also have measurements of seeger rings.

 

[MassiVonWeizen]

by cross post you will not get any more help. indeed the opposite.
quota the drawings as correct think (on the skf catalog is indicated toilleranza according to the use; on the baldassini are indicated the tolerances of the seeger seats) and then discusses it.
No one, no one, no one, no one, no one.

and I do not exclude that in the forum this design, which seems a classic university exercise, has already been treated

 

[Michelefi]

by cross post you will not get any more help. indeed the opposite.
quota the drawings as correct think (on the skf catalog is indicated toilleranza according to the use; on the baldassini are indicated the tolerances of the seeger seats) and then discusses it.
No one, no one, no one, no one, no one.

and I do not exclude that in the forum this design, which seems a classic university exercise, has already been treated

Forgive me, I just wanted to move the post to a forum that seemed more appropriate.. I didn't even want to quote anything, it just seemed to me that with two catalogues I couldn't quote the whole piece, all here.
the use of the piece was not given to me.

 

[MassiVonWeizen]

I just wanted to move the post to a forum that seemed more appropriate to me

to move a post you need to contact moderators

I didn't even want to quote anything, it just seemed to me that with two catalogues I couldn't quote the whole piece

the title lets suppose anything else; What do you want a hand if we have your own information?

the use of the piece was not given to me.

You're an engineer and you don't know/you haven't been told what that piece needs? or the Italian engineer is put wrong or better if you change title to the voice profession

 

[Michelefi]

to move a post you need to contact moderators


the title lets suppose anything else; What do you want a hand if we have your own information?


You're an engineer and you don't know/you haven't been told what that piece needs? or the Italian engineer is put wrong or better if you change title to the voice profession

I wasn't told!!...however I didn't think there was so much sack around

 

[Michelefi]

then excuse but I have no familiarity with the forums...the title was just to give an idea of what I have to do, there is no written: "quote me completely the piece!"

 

[MassiVonWeizen]

Unfortunately I am a rompicojoni! others are more courteous

 

[Michelefi]

what I have to do is written in the image, no more, no less

 

[Michelefi]

Unfortunately I am a rompicojoni! others are more courteous

... then thanks the same

 

[teseo]

hi michelefi, I try to help you then:
piece with bearing I would say that you could start quotating the piece with a general quotation of the piece starting from the axes and adding bevels and rays.
the roughness I would give 3 triangles in the bearing seat
the same thing I would do with the piece "shaft" roughness I would give a three triangles in the bearing mating zone
start posting this then as you see that someone who knows more about me will help you.

ps the bearing seat I would put h7 while on the tree I would put a small interference for pressing

the tolls can be found on the site skf.

Hello I hope to have been of help
correct me if I've said some crap

 

[Michelefi]

hi michelefi, I try to help you then:
piece with bearing I would say that you could start quotating the piece with a general quotation of the piece starting from the axes and adding bevels and rays.
the roughness I would give 3 triangles in the bearing seat
the same thing I would do with the piece "shaft" roughness I would give a three triangles in the bearing mating zone
start posting this then as you see that someone who knows more about me will help you.

ps the bearing seat I would put h7 while on the tree I would put a small interference for pressing

the tolls can be found on the site skf.

Hello I hope to have been of help
correct me if I've said some crap

thank you so much, now I start throwing down something, then I place the result...so maybe we discuss it... thanks again

 

[Max-C]

hi michelefi, I try to help you then:
piece with bearing I would say that you could start quotating the piece with a general quotation of the piece starting from the axes and adding bevels and rays.
the roughness I would give 3 triangles in the bearing seat
the same thing I would do with the piece "shaft" roughness I would give a three triangles in the bearing mating zone
start posting this then as you see that someone who knows more about me will help you.

ps the bearing seat I would put h7 while on the tree I would put a small interference for pressing

the tolls can be found on the site skf.

Hello I hope to have been of help
correct me if I've said some crap

I would begin to get the current rules on the mechanical design, so it starts to quote the maximum ones and give the general rough rough rough rough rough rough rough roughness. switches to geometrical features and other roughness on "delicated" points
to conclude insert any notes.

 

[Michelefi]

This is my poor result, I miss to quote the offices of the rings, the fittings and the bevels, other thousand tolerances. ... but please someone to tell me if I'm going along the right path for now.
I did a h7/p6 coupling for tree-cuscinetto...so I chose a roughness 0.8...as for the fittings, I am a bit 'carved...the general rule seemed to see that I give myself r=(d-d)/2, but how does it work with the bearing housing arrangement on the shaft?? ...the other one gets me very big r=35mm about... I'm shoving everything? ?

 

[meccanicamg]

the coupling bearings you look for it on skf that there are tables for trees and for hubs. in your case the seat of the shaft for bearing the dots in js6 or h7 since it is little loaded.
for the bearing radius look on skf the maximum value you can do with that bearing.
for the rest, tell if you need as big as possible. even if you do not ray....in reality you hardly break the supports unless they are strongly stressed with strong shocks.
share according to regulations.. .not interrupting the quota lines, and make the arrows to norm and not the horrific triangle equilateral that make technical zero.
for roughness the norm provides indication ra 0.8 .... and not so old fashion

 

[falonef]

technical and aesthetic advice:
- one of the three horizontal quotas should be placed in brackets (xx)
- the odds of the diameters pull them out of geometry
- add a bevel even on ø35
- the radius for the unexaggerated ø35 (vtl. r5)
- smusis if possible equal (2x45°)
- Is the horizontal axis representing one or more hidden holes?
> if yes, you must quote their diameter and how they are placed (angle and diameter)
- necessary geometric tolerances?

 

[luca1669]

with regard to the fittings, I am a little incartaged...the general rule seemed to see that I give myself r=(d-d)/2

As for the formula you wrote, it should be the one to obtain the maximum possible radius between 2 diameters. Actually in the position you indicated in red such a radius is not good for 2 reasons:
- is not there because ø35,65 is only 18,26mm long (against a calculated radius of about 35)
- with such a big radius you should add milling to make us stand the head of the fixing screws.

to fully quote the piece you must also indicate the drilling for fixing screws. for this you should add a projection to the right or left. Once you have defined the positioning of the screws you can easily find the øminimo that has to stay slowly in order to make the screws work well. remove a couple of mm at that øminimo and use it in the calculation formula of the radius as a greater diameter (d).

 

[bisogna_rimanere_umili]

question:
size 107 comes from where?
xx,26 how come those 26 cents?

from what little I know, the tolerances of bearing seats also depend
from the type of load and therefore from what the piece serves, question that had already been turned, to which it was not given an answer / hypothesis.. .

 

[Michelefi]

As far as the tollernazes are concerned, I still don't know how, the porizzontal axis is to indicate a hole, in fact I still have to quote that, but for the anerls as I behave? ?

technical and aesthetic advice:
- one of the three horizontal quotas should be placed in brackets (xx)
- the odds of the diameters pull them out of geometry
- add a bevel even on ø35
- the radius for the unexaggerated ø35 (vtl. r5)
- smusis if possible equal (2x45°)
- Is the horizontal axis representing one or more hidden holes?
> if yes, you must quote their diameter and how they are placed (angle and diameter)
- necessary geometric tolerances?

 

[Michelefi]

I have this to quote the piece as it is,I can not make projections.However thanks for the straight on the greater diameter; )

As for the formula you wrote, it should be the one to obtain the maximum possible radius between 2 diameters. Actually in the position you indicated in red such a radius is not good for 2 reasons:
- is not there because ø35,65 is only 18,26mm long (against a calculated radius of about 35)
- with such a big radius you should add milling to make us stand the head of the fixing screws.

to fully quote the piece you must also indicate the drilling for fixing screws. for this you should add a projection to the right or left. Once you have defined the positioning of the screws you can easily find the øminimo that has to stay slowly in order to make the screws work well. remove a couple of mm at that øminimo and use it in the calculation formula of the radius as a greater diameter (d).

 

[Michelefi]

the piece was given to me as exercise, the only measure I have the dn of the bearing (20mm) and the series 2rs1....from there I have to quote all the piece...at the beginning I had simplemnte put as values x,y,z and so on...after I found a factor of scales of about 0,87 and then I climbed all the measures,it is from there that came out the 107mm I was writing.