dynamic load coefficient bearings arranged to x

[antonio.sab]

Good morning.
I should create a gearbox which consists, in a synthetic way, of two trees supported both on one side by a radial ball bearing and on the other by a pair of x-shaped oblique ball bearings (see attached photo). I had already designed to dimensional the duration of bearings, however, considering skf bearings, however for lead time reasons, I was forced to opt for other suppliers, (grw). skf tells me that, for the pair of x-shaped bearings, the dynamic load coefficient is equal to 1.62* of the single bearing, while the static one is equal to 2 times that of the single bearing. considering the bearings of the grw I cannot find similar information to proceed to calculation of the duration of the above bearings. I initially thought I could use the same intake, but the grw bearings proposed have a contact angle of 15°, unlike the skf bearings for which it is between 25-40°. Can someone please tell me how to adjust for the choice of coefficients c and c0 regarding the problem described above?

cordial greetings
antonio corbo

 

[DrBarde]

Surely someone will start answering them, but I ask you a question first. Did you try to contact the manufacturer? is information that, as a rule, are happy to give as it follows the use of their product.

 

[antonio.sab]

first thanks for the attention. however I had arranged to contact the company, but the answer was late to arrive, and I tried to walk an alternative route.
Thank you.

 

[meccanicamg]

I've never heard of this brand. Don't they have a catalogue? White bearings is dealer. Actually, if you know the angle of inclination, you can see the coefficients that you use skf.
this is the bump that you pay by taking not primary brand.

 

[antonio.sab]

the brand is quite used in the aerospace industry, not as skf, but we say it is known. they have a catalog to download, but it's a little bit scary. I have however thought to proceed as indicated by you, that is to apply the skf theory also to the aforementioned bearings, considering the skf calculation factors for ball bearings oblique with contact angle of 15°.