change bearing diameter

[light incautious]

Hello!

I'm sorry for the stupid question, but I'm a novice. How do I change the diament of an iso bearing with measures chosen by me?
before opening the discussion I tried but I found only a thread already open that however I was not very helpful. . .

 

[linch]

Hello!

I'm sorry for the stupid question, but I'm a novice. How do I change the diament of an iso bearing with measures chosen by me?
before opening the discussion I tried but I found only a thread already open that however I was not very helpful. . .

you can't change the diameter of an iso bearing to your liking, but you need to change your design according to the standard size of the bearings in the catalog.
go to the skf website, find everything.

 

[light incautious]

but I knew you could do... here: http://www.cad3d.it/forum1/showthread.php?t=17580 He says he's just...

 

[linch]

but I knew you could do... here: http://www.cad3d.it/forum1/showthread.php?t=17580 He says he's just...

explains what you'd like to do with data.

 

[marcof]

but I knew you could do... here: http://www.cad3d.it/forum1/showthread.php?t=17580 He says he's just...

What did you not understand?
but you have a native model in swx, so parametric or you want to change a step, you have to change a library element?
because in the first case you just have to go back with a new name or add a configuration (or all configurations of that set of bearings) to the same file and change the odds.
in the second case may be more complicated depending on how the step is done. in the third case it is explained in the link.

p.s.
but why are most of the questions placed in a unclear manner and force those who respond to "extort" the information they serve to provide the required help?
pstare an example file, a screenshot, a detailed description of the problem and the operations to be performed that are not coming is too difficult?

 

[light incautious]

You're actually right. . I'm planning a turbofan for cad examination at university (of course stylized) here is the image (it's not minimally finished .. :



uploaded with imageshack.usObviously I used random measures and some components obviously have to be connected to the tree by means of a bearing...I would need to be able to adapt the bearing misucra to that of the tree because if I have to do the opposite for me it is a great problem.. .
in fact I can agilely change the diameter of the tree but not those of the wheels of the blades because in doing so they mess up all the spline that I used to draw the blades...

 

[marcof]

I obviously used random measures

Of course not. if you had used measures from "Christians" you would have at your disposal beautiful bearings

...I would need to be able to adapt the buffer to that of the tree because if I have to do the opposite for me it is a great problem.. .

You didn't answer the question about which type of exit you have at your disposal so we're headed...
do you have a part file created in swx? change the odds and put on those randomly chosen for your turbofan. Don't you have it? fanne una ex novo modeled directly inside the very axis. It takes 10 minutes to say so.

in fact I can agilely change the diameter of the tree but not those of the wheels of the blades because in doing so they mess up all the spline that I used to draw the blades...

I can hardly imagine how you worked and the final purpose of your work. If you draw "by chance" and you can't change a diameter because you mess up the splines the model must be a wandering mine. Watch the changes then, otherwise you don't go out anymore.

One thing, please: Tell me your turbofan is an axieme and not a single part. . .

 

[light incautious]

Of course not. if you had used measures from "Christians" you would have at your disposal beautiful bearings



You didn't answer the question about which type of exit you have at your disposal so we're headed...
do you have a part file created in swx? change the odds and put on those randomly chosen for your turbofan. Don't you have it? fanne una ex novo modeled directly inside the very axis. It takes 10 minutes to say so.



I can hardly imagine how you worked and the final purpose of your work. If you draw "by chance" and you can't change a diameter because you mess up the splines the model must be a wandering mine. Watch the changes then, otherwise you don't go out anymore.

One thing, please: Tell me your turbofan is an axieme and not a single part. . .

Well, first I'm a student, so I can't know what "Christian" measures are. ...
for the bearings available I have the standard toolbox of solidworks 2010 and I tried to take the ball bearings of the iso norm (there are only 4 types between them, I attached the image below.. ).
Yes the image of before is of a set I am not so crazy to do such a thing in part (always that you can among other things)...
In particular, I would need ball bearings of this size:

1) inner diameter: 200 cm
external diameter: 250 cm

2) internal diameter: 300 cm
outer diameter: 350 cm

3) internal diameter 350 cm
external diameter: 400 cm

4) external diameter 380 cm
internal diameter 330 cm

 

[linch]

Well, first I'm a student, so I can't know what "Christian" measures are. ...
for the bearings available I have the standard toolbox of solidworks 2010 and I tried to take the ball bearings of the iso norm (there are only 4 types between them, I attached the image below.. ).
Yes the image of before is of a set I am not so crazy to do such a thing in part (always that you can among other things)...
In particular, I would need ball bearings of this size:

1) inner diameter: 200 cm
external diameter: 250 cm

2) internal diameter: 300 cm
outer diameter: 350 cm

3) internal diameter 350 cm
external diameter: 400 cm

4) external diameter 380 cm
internal diameter 330 cm

I repeat, go to the skf site, you will realize what we are talking about, and what are the measures of Christians.

 

[marcof]

Well, first I'm a student, so I can't know what "Christian" measures are. ...

These are the bearings you find on the market, not the ones you want to find... that then obviously the rolls-royce or the pratt & whitney can make them to measure is a separate speech.

In particular, I would need ball bearings of this size:

1) inner diameter: 200 cm
external diameter: 250 cm
2) internal diameter: 300 cm
outer diameter: 350 cm
3) internal diameter 350 cm
external diameter: 400 cm
4) external diameter 380 cm
internal diameter 330 cm

boh, I cannot understand the criterion of the choice of these measures and not even that of the choice of the type of bearing. Now, certainly what you have to do is not the project of a real turbofan (I can explain what you have to do with that axle, which I haven't understood yet, please?) so you can also not bring the problem of what type of bearing should be mounted, but at least make sure that something already shaped at your disposal exists.
this for example is a roller bearing without inner ring, but go to know whether it can go or not.http://www.skf.com/skf/productcatal...indowname=null&perfid=146132&prodid=146132148I repeat, from what I understand about the realism of your project you can invent one of your liking by changing one of those of the toolbox. I don't have the toolbox so I can't help you, but it will be neither more nor less to save the file by name and change its quotas, I think.
Or do it yourself, with the configurations you need and take your mind off. from midnight to now you would have made a cart... :smile:

 

[light incautious]

I have to create a set that moves for an examination with relative explosion and projection of the components ..no matter that it is a realistic thing...that you claim I am a mechanical engineering student not the planner of the roll roys! I am not able to make a real turbine. .
By the way, my turbine is not even so horrible. . .
the bearings and measures I have not chosen them I made them randomly! as I must say!!
is not the realistic project and 2000!! I just don't understand why it's so difficult to imagine a non-distinguished combination of real production!

 

[maxopus]

then shaped to handle the bearing and relations the relative constructive sketches to the adjacent components ... from the swx uses and we still saw that there are offset and coincidence relationships? If you don't care what we're thinking about?

 

[marcof]

I have to create a set that moves for an examination with its explosion and projection of components ..no matter that it is a realistic thing. . .

Okay, then model a bearing just as long as it is, without so many frills, then you make 4 configurations with the size you need and insert it into the top where you need it

that you claim I am a mechanical engineering student not the roll designer roys!! I am not able to make a real turbine.. .

no one demands anything except to understand what you need, and it is not easy because you have formulated your questions and your questions in a way far from clear; We have now come to understand. Maybe we apologize for the trouble we give you. . .

By the way, my turbine is not even so horrible. . .

Did you read something like that about it?

the bearings and measures I have not chosen them I made them randomly! as I must say!!
is not the realistic project and 2000!!

that you randomly made them the you specified in the previous message, to what the aid you specified it now, but it was not easy to convince you to explain how you should...

I just don't understand why it's so difficult to imagine a non-distinguished combination of real production!

I do not understand why a university student, in particular a future engineer, must have all these difficulties in formulating a request for help so that it is understood at the first stroke, that is to contain all the "data" to solve the "problem" and above all I do not understand why you should be resentful if you ask yourself to explain, why it is clear, what has not been able to explain is you and we could understand "at rate".

after all this, you would like to explain to me what prevented you in almost 24 hours to model in ten minutes this blessed bearing (we told you immediately), since you modeled trees, rotor blades, stator blades, various rings, nozzles, combustion chambers, ogiva and everything else

 

[light incautious]

Hello!

I did not explain myself well it is true.
I thought it was a question made millions of times, so there was no need to specify.
It's also true that I modeled everything from myself, but I could do it because I know well or bad how a turbine works. I'm no other hardware on the bearings instead and I don't think I'd be able to shape a good one I think that would come out of me something quite obrobrious ( cmq to extreme evils I can try ) ...
Anyway, now I realize that by dragging the type of bearing on the affected part of solidworks I choose the one with the dimensions + similar to those of the tree. in fact I found what I was looking for at least in terms of diameters.
in fact here I am born the new problem. the diameters are in place the big problem are the thicknesses because dragging the bearing on the tree alone solidworks takes care only of the diameter of the tree and not of the thickness. I tried to mount the pieces on the tree and to select the circular crown between tree and piece but I couldn't take it. .

 

[light incautious]

I'm sorry... but I was thinking, but if instead of just putting one thick 80 cm bearing in 4 thick 22, would that be such a horrible thing?

 

[Er Presidente]

I have a headache, I'm sick, seriously!
What are we talking about?
: eek:: eek:: eek:

 

[linch]

I'm sorry... but I was thinking, but if instead of just putting one thick 80 cm bearing in 4 thick 22, would that be such a horrible thing?

thick bearing 80 cm???? ? ? ? ? ? ?
I hope it's a writing error.
Excuse me, have patience, even if others are losing it, if you attach a section completely, we will solve it immediately.

 

[linch]

I have a headache, I'm sick, seriously!
What are we talking about?
: eek:: eek:: eek:

You want to do this.

 

[stefanobruno]

I am a 1976 class peritace, I wonder:
Is it normal at today's university to face a turbofan without a light dust on the bearings?
What's going on?
horrible things are waiting for us.

 

[light incautious]

I solved thanks the same for the help.. .

p.s. we avoid comments on what is being studied today.. I have not finished the universality. They're half three. . .