Fulcrum R7 worn hub bearings

mgcycleguy
mgcycleguy Posts: 292
edited September 2010 in Workshop
I have a pair of Fulcrum Racing 7s, which have served me well as my bad weather (winter wheels)... but the hubs appear to be very grindy now... I've ordered the correct cartridge bearings off Jim Walker... my question therefore is anything I should know about replacing cartridge bearings ?... are they just pop out and pop in ?... or are specialist hub tools required to pull them or seat them etc ? ... which obviously would be best left to my trusty LBS ?

Thanks in advance

Comments

  • mgcycleguy
    mgcycleguy Posts: 292
    ... well I can't even work out how to get to the bearings on the front wheel !!!!!!
  • Weejie54
    Weejie54 Posts: 750
    fulcrum5.jpg

    Picture shows Fulcrum 5, but 7 is the same.

    Hold hex at one end and remove R5-009 at other.

    Front is a doddle.
  • mgcycleguy
    mgcycleguy Posts: 292
    Ok thanks... I can see now how the back works... so the front bearings just have metal covers that I simply have to pull or prise off in some way, I cant see anything to screw off?
  • Weejie54
    Weejie54 Posts: 750
    There should be a nut at each end. You remove the axle and drift out each bearing carefully from the opposite end.

    Choose the appropriate spares catalogue for the year your wheels were made and there is an exploded diagram for the Racing 7 (Racing 5 might be clearer).

    http://www.fulcrumwheels.com/jspfulcrum ... world=road
  • mgcycleguy
    mgcycleguy Posts: 292
    ...got it... thanks for that... gonna have another go.... sorry to be so dim

    regards
  • mgcycleguy
    mgcycleguy Posts: 292
    ok guys... I've replaced my rear wheel bearings and everything is good and smooth again... however I still cant work out how to strip the front hub, it doesnt look like anything i can find on either for the Racing 7 or 5 front hub assemblies....

    ... so I've attached pics... how the hell do i get into this please !!!

    http://img834.imageshack.us/i/photo0006i.jpg/

    http://img251.imageshack.us/i/photo0008f.jpg/
  • Weejie54
    Weejie54 Posts: 750
    Looks like the hubs don't match the spares diagrams indeed!

    Have you tried a 5mm allen key in the end?.
  • mgcycleguy
    mgcycleguy Posts: 292
    ... nope I'll give that a go... looking at the other diagrams, it looks more like the outside of a Racing 3 !!!... maybe they cobbled something together when they built mine out of some spare bits they had lieing about ! :lol:
  • mgcycleguy
    mgcycleguy Posts: 292
    Can't use an allen key, the hole is perfectly round .... :(
  • Weejie54
    Weejie54 Posts: 750
  • careful
    careful Posts: 720
    I can confirm that the axle has a circular bore with no hexagons inside. I gave up on mine and took it to my LBS. They replaced the bearings no problem. They told me that the ends of the spindle pull off with some sort of puller - unfortunately they didn't show me how but only charged me about £5 above the cost of the bearings.
  • I hate to give up and surrender to my LBS... but I can't find anything on the interweb about how to pull covers... !!!! :?
  • I hate to give up and surrender to my LBS... but I can't find anything on the interweb about how to pull covers... !!!!

    Apparently, they are the same hubs as Campagnolo Mirage. Whether the axle caps are the same is uncertain.
  • MRadd
    MRadd Posts: 205
    Right, it is possible to service these hubs! Its very fiddley, but myself and a collegue today managed to strip my hub right down.

    Holding the axle caps on are two, very small circular clips. With careful levering (we used to precision flat headed screwdrivers and a fair amount of patience and tea) you can get them to come off. Watch out for them pinging around.. deep pile carpet best be avoided for this!

    After "pinging" the clips off, you should be able to pull of the axle cups. Once these are off, you can see the bearings. Tap the axle from one end with a rubber mallet and the opposite bearing will fly off. Use a screwdriver to get the other to park company with the hub itself.

    Now, mine are F-ed! So replacement ones have been ordered. No point going for actual campag or fulcrum ones, as these are rediculously expensive. We can get much cheaper versions, that we feel are far superior. As far as fitting these goes, it shouldn't (hopefully) be too much hassle. Our only concern is we may have to use a headset press or similar to seat the bearings properly back into the hub body.

    Hope this has helped and that you don't lose the circular clips!
    : "Why don't i remember breaking my face?" :

    : Semi Professional Grease Monkey, Full time Tea boy... :
  • TOP JOB guys.... I would never have guessed there were spring clips... have managed to get them out !!!!! :D