Advertise on Bikeforums.net



User Tag List

Results 1 to 13 of 13
  1. #1
    Senior Member
    Join Date
    Aug 2005
    Posts
    371
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    bearings in a 105 hub

    I recently acquired a 2001 GT zr3000 road bike which had a sticky 105 front hub. it was smooth fot 3/4 of the revolution, and barely moved in the other quarter. I pulled the hub apart suspecting a bent axle, but it is totally straight. The cones, races, and bearings all appear to be in good condition. One side had nine bearings, the other had 10. Most newer wheels i have found to have 10 per side. I went ahead and added the extra bearing to the side with 9, cleaned it up real good and put it back together only to find that it is now worse than it was before. Same problem, but it also has some bearing pop sometimes. are 105 hubs supposed to have 9 per side? if not, any other ideas?

    thanks in advance

  2. #2
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    Location
    St Peters, Missouri
    My Bikes
    Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
    Posts
    23,821
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If equalizing the number of bearings at 10 made it worse, why don't you try equalizing the number of baarings at 9 to see if that makes it better?

  3. #3
    Senior Member AnthonyG's Avatar
    Join Date
    May 2005
    Location
    Queanbeyan, Australia.
    Posts
    3,522
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I just had a look at the Shimano website because something wasn't ringing true. Front hubs use 11 x 3/16 " bearings per side and rear hubs use 9 x 1/4 " bearings per side.

    Regards, Anthony

  4. #4
    Senior Member
    Join Date
    Aug 2005
    Posts
    371
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by AnthonyG
    I just had a look at the Shimano website because something wasn't ringing true. Front hubs use 11 x 3/16 " bearings per side and rear hubs use 9 x 1/4 " bearings per side.

    Regards, Anthony
    11? ten seemed pretty tight, I dont even know if I could fit 11 per side. is this for all 105 hubs?

  5. #5
    Senior Member
    Join Date
    Aug 2005
    Posts
    371
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    also, where on shimano's website did it say how many and what size bearings? I can't find it.

  6. #6
    Senior Member AnthonyG's Avatar
    Join Date
    May 2005
    Location
    Queanbeyan, Australia.
    Posts
    3,522
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Maybe the problem is that someone has fitted the wrong sized bearings.

    If you go to the products page, 105, hubs and then exploded view you will get a PDF with the information. Mindyou 11 x 3/16 front and 9 x 1/4 rear is standard for Shimano.

    Regards, Anthony

  7. #7
    The AVatar Ninja SaabFan's Avatar
    Join Date
    Aug 2006
    Posts
    609
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Sounds to me like someone installed fewer of a bigger bearing. Start over with the right stuff!
    Q: How many surrealists does it take to change a light bulb?
    A: FISH!

  8. #8
    D=RxT
    Join Date
    Sep 2006
    Posts
    141
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Older 105 & other Shimano front hubs take 10 bearings per side 3/16th size. Shimano's site has tech docs for 07 newer generation hubs. Check that the metal dust cap is not bent or shifted out of place.

  9. #9
    Senior Member
    Join Date
    Aug 2005
    Posts
    371
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    one of the dust caps inner lips are bent slightly. I guess i'll replace that and get new bearings. thanks guys

  10. #10
    Since 1938... JunkYardBike's Avatar
    Join Date
    Aug 2006
    Location
    Northwestern NJ
    Posts
    6,209
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by fadetoblack6902
    one of the dust caps inner lips are bent slightly. I guess i'll replace that and get new bearings. thanks guys
    I've also read that when replacing bearing balls, you need to use balls from the same batch, as different batches may be different in actual diameter. This might account for the popping you experienced after adding an odd ball. On the other hand, maybe the difference is so slight it only matters over the long haul.

  11. #11
    cyclist/gearhead/cycli... moxfyre's Avatar
    Join Date
    Oct 2004
    Location
    DC / Maryland suburbs
    My Bikes
    Homebuilt tourer/commuter, modified-beyond-recognition 1990 Trek 1100, reasonably stock 2002-ish Gary Fisher Hoo Koo E Koo
    Posts
    4,172
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by JunkYardBike
    I've also read that when replacing bearing balls, you need to use balls from the same batch, as different batches may be different in actual diameter. This might account for the popping you experienced after adding an odd ball. On the other hand, maybe the difference is so slight it only matters over the long haul.
    This is true. Using a mixture of old and new balls -- properly cleaned, greased, and adjusted -- will give you a hub that is not as smooth as a hub with all-new bearings. Normally you can get it pretty decent... it just won't be floating-on-air smooth like brand new balls from the same batch will give you.
    My bikes | Linux and Python stuff | Photo gallery

    Sheldon Brown, I miss you. Thanks for the advice, ideas, humor, and infectious enthusiasm for everything bikes...

  12. #12
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    25,593
    Mentioned
    6 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by AnthonyG
    I just had a look at the Shimano website because something wasn't ringing true. Front hubs use 11 x 3/16 " bearings per side and rear hubs use 9 x 1/4 " bearings per side.

    Regards, Anthony
    The only Shimano front hubs that uses 11 x 3/16" balls per side I've ever seen are Dura Ace. All of the others use 10 x 3/16" balls.

  13. #13
    Senior Member thePest's Avatar
    Join Date
    May 2006
    Location
    Pacific NW
    My Bikes
    none at this time
    Posts
    130
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    On a Shimano Hub it has always been industry standards to have 10 3/16" bearing on each side.

    1.) roll a stripped down axle across a plate of glass and really check if it's bent
    2.) replace with ALL New bearings. {assume some are no longer round being they have been riding so long with 1 missing...**
    3.) Inspect the actual bearing race/cup in the hub and that the wear mark is even all the way around. NOTE: if this is bad!!! Best to replace the complete hub and have one relaced into it...
    4.) Last MUST BE THE CORRECT CONES? this will throw off any setting due to the curve in the actual cone.

    Suggest: Best to Locate a used Hub or New. Price on a complete hub is cheaper then buying all new parts. except of course bearings.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •