Double row Ball Bearings???????

[Nessie Hunter]

I have an account at Boca Bearings to order odd ball size bearings etc..
So I get emails from them all the time..

I got this Yesterday and was very curious if they are a 'new product' or have they been around for a long time and I just didnt know of them???

Big question is ~ would they eliminate the need in Lever drag Reels for the Spool Bearing Sleeve??
It says they are capable of handling BOTH Radial & Axial loads??? 


**Double Row Deep Groove Ball Bearings have the same design as Single Row Deep Groove Ball Bearings. They have deep raceways with a high degree of contact between the ball and raceways. Double Row Deep Groove Ball Bearings are capable of handling both radial and axial loads and are suited to applications where higher load carrying capacity is necessary. **



Inquiring minds need to know!!!             LOL





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[alantani]

not sure.  it would, in theory, be the same as a stack of two standard ball bearings.  it might actually work!

[Norcal Pescador]

**Double Row Deep Groove Ball Bearings have the same design as Single Row Deep Groove Ball Bearings. They have deep raceways with a high degree of contact between the ball and raceways. Double Row Deep Groove Ball Bearings are capable of handling both radial and axial loads and are suited to applications where higher load carrying capacity is necessary. **

It sounds like they should work if a higher load factor is needed. But I understood that the least amount of contact between the balls and the raceways is the objective for the least amount of friction / rolling resistance.  A compromise, or a way to get maximum load in the given space while sacrificing speed?  My 2 cents. Please explain if I'm wrong.
Rob

[Keta]

The spool sleeve is a spacer not a friction reducing device so putting a bearing there would be a waste of money and time. 

A flanged angular contact bearing would work far better for thrust, are good for radial loads and do not have the potential to crack the race like a deep groove bearing will.

[Nessie Hunter]

Great Info all, thanks.....   

Looks like the sizes they are available in are on the large size for reels anyway...