[LastBoyScout]

I have recently acquired a 2nd hand set of Fulcrum Racing DB CX wheels as a spare set for the CS bike.

The NDS rear bearing is a bit gritty and could do with replacing – can anyone recommend some decent bearings and where to get them from, please?

I don’t want the cheapest, but don’t want to pay through the nose, either.

Interestingly, the DS and NDS bearings seem to be different sized, with smaller diameter on the DS.

Thanks,

Topic

[Balthazar]

I’ll support the comments

I’ll support the comments above- you should find your wheel in the spares catalogues here

https://www.fulcrumwheels.com/en/download-technical-documentation

which will give you the bearing dimensions. If you can afford the time between disassembly and rebuild, you could just measure your bearings- a cheap vernier gauge is fine (they will be a standard size, to a nearest mm)- and buy new from a generic bearing supplier like simplybearings.

If you have just a little mechanical sensitivity, and a socket set, it isnt difficult to devise ways to drift sealed bearings in and out of position. 

[Richbeck]

Nsk, ntn, fag, skf- all good
Nsk, ntn, fag, skf- all good cartridge bearings – you should hopefully find the size etched on the current bearing – +1 for Hambini.

[mike the bike]

As far as I’m aware there is

As far as I’m aware there is no such thing as a cycle specific bearing; they work just as well in a multitude of other applications.  So, to avoid paying the wheel distributors’ prices you could just order from someone like qualitybearingsonline.com and have your choice of manufacturer.  You will need to find the dimensions, or at least the serial numbers from your current bearings.

As a matter of interest the knowledgeable engineer and cyclist Hambini (Google him if you don’t know his work) is always very complimentary about NSK bearings.

Best of luck.

[Author]

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