How much of a moment load can a ball bearing take before the break? I have a situation in which using two bearings is pretty much impossible.
How much of a moment load can a ball bearing take before the break? I have a situation in which using two bearings is pretty much impossible.
You can find the specs by the bearing number - McMaster-Carr has them nicely organized by type and material on their website.
They only have the axial load.
www.skf.com look around on this website. They have ALL their engineering data, fit class for instalation, load/life calculations. It's AMAZING!
Then go to either Mc-master or Motion Industries Search on the SKF part number and you can select from 3-4 different bearing companies the equivalent bearing to order.
What you want is these badies for small bearings for moment load aplications. This is the type of bearing used on C5/C6 corvettes, Lotus Elises, and numerous other sports/racing cars. They are awesome.
Angular contact ball bearings, double row
Look at all the specs you want on the SKF website. The bearing Industry if VERY well organized and has consistent specs across multiple manufacturers. This is how we selected the bearings for our FSAE car. If you remove the existing wheel bearings from say a 1994 Suzuki RF600R that has been in a flood and read off the part numbers that are printed on all bearings, and then go to your local Motion Industries you will pay only $25 to replace all 4 wheel bearings rather than the $110 that Suzuki wants to re-package them in a niffty Genuine Suzuki box.
Thanks but I am confused on the angular contact ball bearings link which d is the ID.
96DXCivic wrote: Thanks but I am confused on the angular contact ball bearings link which d is the ID.
Logic would have it that the smaller of the two diameters is the inner diameter. I'm not quite sure how you get an ID that is larger than the OD, but I'm sure there are some engineering students out there that would argue how it is possible. 
Bryce
Oh right deedee. I can't believe I asked that. It has been a long day.
Is b the thickness of the bearing or what?
What are you building? As near as I can tell it's going to have a single sided swingarm.
It is for the UAH moonbuggy.
Have you tried looking at the website and using your brain before asking questions about their specs? First the ID/OD part, now you're asking what "b" means...sheesh, throw us a bone here dude. Click on any one of the part numbers in the link nocones provided and it gives you a pretty picture with all sorts of fun dimensions. B is the width of the bearing...the key here being that the "principal" dimensions are ID, OD, and width.
For reference, bearing companies don't really make a bearing that's "good" for moment loads, just better than others. In reality, designing a bearing to deal with a bending moment is poor design, that's why they make double row bearings and such. If you're going to have a bending moment, you better not be using a single ball bearing! Even if you were only allowed one bearing, you should at least use a roller bearing, but more appropriate is to use a double row bearing.
http://www.google.com/search?&q=bearing+applications
Bryce
I'd have to agree with nocones, the SKF website is very helpful. It helped me find bearings for my Capri locally.
In reply to Nashco:
It was designed while I was on spring break so I am trying to come up with a backup plan. Sorry about the stupid questions. I haven't left the shop before like 4 in the morning so my brain isn't functioning.
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