interference on bearings

[Stan9411]

Hi, I'm an engineering student and it's the first time I've been writing on this forum even if I've been following you for a while and I find very interesting many of your conversations.
studying forced calettaments I learned to calculate the necessary interference between tree and hub starting from the couple that it is necessary to transmit. I wondered for curiosity instead, according to what should the interference between a tree and the inner track of a bearing be evaluated??

 

[MassiVonWeizen]

based on the function of the bearing (expenses cart, iron and steel leverism, automotive leverism, space shuttle.... )
on the site of the skf, to say the best known, you find a sea of documentation about it.

is a topic that has already been dealt with in this section and probably in that dedicated to students

so much to sayhttp://www.skf.com/it/products/bear.../selection-of-fit/recommended-fits/index.html

 

[Stan9411]

Thank you very much

 

[320i S]

manual skf and you are in an iron barrel; by now it has become like consulting the degrees of tolerance, useless to calculate something that has now been calculated by others, better to spend time checking to have taken into account all the forces and stress at stake.

 

[meccanicamg]

in general inner ring with tree and outer ring with hub should be coupled with interference if they have to stay in place, to preload and reduce the operating games between the slopes and the desired elements.
in particular cases where the bearing must flow axially a couple with game.
as a rule on the trees is j6 or k5 to mount the hot bearings with interference. the standard hub is m6. to flow axially the outer ring makes the hub h7.
these are general things but each application must be evaluated very well, even for the type of bearing itself, available equipment, type of load.
If you want to know exactly the duration and the remaining games you need to contact an ina or skf dealer who will give you additional information to the catalog.

 

[meccanicamg]

a beautiful theoretical and practical traction find it in these posts, already treated http://www.cad3d.it/forum1/threads/...inetti-radiali?p=336925&viewfull=1#post336925

 

[meccanicamg]

and in this post you will find an astounding game according to mating tolerance http://www.cad3d.it/forum1/threads/47405-gioco-assiale-cuscinetti-orientabili-rulliBearings with diameter 400/500mm have axial games of 3 mm and all thought that there was no game.. .