Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 06-16-06, 05:06 PM   #1
na975
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
i need hepl with wheel bearing

is it possible that new hub bearings can have micro flat spots on them to cause the wheel to feel notchy while spinning them?from aset of brand new suzue hubs, i took the bearings out (loose type) cleaned them, then tested them one by one by rolling them on a glass table, i noted they rolled all eratic, if i upgrade to grade 25 bearings could this solve my quest for smoothness while spinning the wheel?
  Reply With Quote
Old 06-16-06, 05:48 PM   #2
top506
Death fork? Naaaah!!
 
top506's Avatar
 
Join Date: Nov 2005
Location: The other Maine, north of RT 2
Bikes: '71 Gitane Super Corsa, '73 Atala Giro d'Italia, '73 Schwinn Super Sport, '76 Viscount Aerospace Pro, '81 Miyata 710, '81 Lotus Classique, '84 Ross Signature 290s, '85 Miele Gara, '87 Miyata 512, '89 Centurion Ironman, many more
Posts: 3,693
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
At first blush, I'd say that the cones are too tight, especially since you state that you had the hub apart. Loosen one side a touch and see what happens.
Top
top506 is offline   Reply With Quote
Old 06-16-06, 06:50 PM   #3
na975
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
Quote:
Originally Posted by top506
At first blush, I'd say that the cones are too tight, especially since you state that you had the hub apart. Loosen one side a touch and see what happens.
Top
tried that already! any other sugestions, anything. the hubs are brand new, iv'e adjusted the preload for hours and hours beleive me.3 things i suspect are 1- cones 2-races 3-bearings.
  Reply With Quote
Old 06-17-06, 07:02 AM   #4
mtbikerinpa
Senior Member
 
mtbikerinpa's Avatar
 
Join Date: Dec 2004
Location: PA
Bikes: 92 Giant Sedona ATX Custom
Posts: 1,713
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
There should only be detectable freeplay in a hub if it is a QR axle. There is a fine line between tight and slop-free. If it is too loose you can do more harm than you might think by allowing the balls to dent on impacts(I've repaired a lot of those from rough riders).
The balls being 'non-round' is not unheard of from a factory. It is just a lot rarer than it used to be. Another concern that is overlooked oftentimes is the preload on the bearings out of the box is going to be way tight. That is from the quality control department of the factory, when they test for the afore mentioned. The problem arises when the preload is not relieved before a QR is tightened.
Inspect your bearing races and cones. If they are intact, you got off cheap and go treat yourself to some new bearing balls. They are cheap. Put in some good automotive wheel grease while your'e at it(Valvoline 614 is always my fav).
mtbikerinpa is offline   Reply With Quote
Old 06-17-06, 07:07 AM   #5
dafydd
JRA...
 
Join Date: Oct 2003
Location: philly
Bikes: trek 520 & 736, DeRosa Professional, Fuji Professional, Raleigh International 3-speed, Saronni (any info people?), Humber 3-speed, Raleigh Sports, Carlton Grand Prix coming soon!
Posts: 839
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
if you're talking about suzue jr track hubs, they're... basic. they'll feel crunchy at first and wear into feeling smoother, but never campy smooth. my personal preference is to run them a little tight until they wear in. also keep in mind the LH and RH cones and bearings are different on these.
dafydd is offline   Reply With Quote
Old 06-17-06, 10:49 AM   #6
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Bikes: 1987 Bianchi Campione
Posts: 28,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Possibly wrong bearing size...?
operator is offline   Reply With Quote
Old 06-17-06, 07:04 PM   #7
na975
Guest
 
Bikes:
Posts: n/a
Mentioned: Post(s)
Tagged: Thread(s)
Quoted: Post(s)
Quote:
Originally Posted by dafydd
if you're talking about suzue jr track hubs, they're... basic. they'll feel crunchy at first and wear into feeling smoother, but never campy smooth. my personal preference is to run them a little tight until they wear in. also keep in mind the LH and RH cones and bearings are different on these.
I have the suzue promax NJS type track hubs, they are brand new! what do you mean by saying that the bearings are different sizes L>R????? I took the bearings out and they all measure 1/4" exactly.
  Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 08:46 AM.