axial roller bearings

[meccanicamg]

on these types of bearing the radial game is very important and repercussions on the axial one.

At times, double crown roller bearings can be mounted and the axial game after assembly does not exist or is reduced. This is wrong. For example, an internal diameter bearing 160 could have an axial fig, considered the mounting tolerances, from 0.5 mm to more than 1.5 mm.
here. http://snr-ntn.co.uk/industry/pl/pl-pl/file.cfm/13-cuscinetti_orientabili_a_rulli.pdf?contentid=4751 there is a snr document where the calculation values and formulas are reported.

Furthermore, mounting with two bearings of this type must be isostatic and it should not be minimally thought of adjusting the game axially with jokes or substantive because they could preload after thermal expansion the bearings and bring them to premature death.

also this skf guide can be useful http://www.skf.com/binary/77-148465/6100-i_it.pdf

 

[meccanicamg]

also ina fag indicates here http://medias.schaeffler.com/medias/it!hp.tg.cat/tg_hr*st4_102440715#st4_919666571 the calculation formulas of the axial game, therefore it is a thing shared by all the builders and it is good to keep in mind.

 

[AsuraEquation]

great info. I'll be useful.

Thank you.

 

[brn]

meccaing do you have any advice for a good manual on the bearings?
I don't think I'm going to have one.

 

[meccanicamg]

skf's are the technical notebooks. just ask them on the site and they send them to you.
the online manuals made well are those of the ina that are in pdf. however do not reveal great secrets, in the sense that you need to know what and how to mount. Plus you will find in addition to the dimensional and load parameters, the equipment to mount and disassemble the bearings (which normally does not use anyone) and some mounting design.

 

[meccanicamg]

extra things you need are usually not there, such as axial games. Because the radial ones might be there. then it is not indicated according to tree tolerance and/or hub of how much you reduce the games.
the calculation with the changed parameters now there are everywhere and nothing more to invent. It seems almost impossible to know the rigidities and angle oscillations of the bearings.
important things to get into the detail of special applications are never indicated.