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Hub overhaul - can I get rid of the extra bearing ball?

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Hub overhaul - can I get rid of the extra bearing ball?

Old 03-15-09, 07:26 PM
  #1  
kmart
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Hub overhaul - can I get rid of the extra bearing ball?

Yesterday I did a fairly muddy ride on my mountain bike, after which the bike was hosed down with light pressure (just me putting my thumb over the hose). Today I noticed that the front hub was really grindy. I opened it up and it looks like it needs some fresh grease. However, I noticed that each side of the hub has the maximum number of balls that will fit, as shown here:



I usually see hubs with one fewer ball than the maximum, and typically the manufacturer says that it's best to leave it that way instead of packing the hub all the way. In this case, the hub is a formula disc hub on a WTB SpeedDisc wheelset.

Now, to my question: Can I remove a ball on each side without any bad side effects? Wouldn't this make the wheels roll smoother and last longer by preventing the balls from always grinding up against one another?
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Old 03-15-09, 07:42 PM
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FLYcrash
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Hmm, 10 balls...that is one more than I usually see on hubs.

But I do see some air in there, so it's not like the balls are going to tear each other up. They actually look about as loose as the balls in most hubs I've rebuilt.

Basically, I'm not sure...
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Old 03-15-09, 08:07 PM
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sooprvylyn
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The manufacturer of your hub used 10 bearings not 9. There is a reason they did that, use 10 bearings.
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Old 03-15-09, 08:28 PM
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Originally Posted by kmart View Post
Yesterday I did a fairly muddy ride on my mountain bike, after which the bike was hosed down with light pressure (just me putting my thumb over the hose). Today I noticed that the front hub was really grindy. I opened it up and it looks like it needs some fresh grease. However, I noticed that each side of the hub has the maximum number of balls that will fit, as shown here:



I usually see hubs with one fewer ball than the maximum, and typically the manufacturer says that it's best to leave it that way instead of packing the hub all the way. In this case, the hub is a formula disc hub on a WTB SpeedDisc wheelset.

Now, to my question: Can I remove a ball on each side without any bad side effects? Wouldn't this make the wheels roll smoother and last longer by preventing the balls from always grinding up against one another?
That looks like plenty of a gap between the bearings at 1 o clock position. I wouldn't remove anything.
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Old 03-15-09, 09:40 PM
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OK, I kept it as is. Thanks for the advice.
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Old 03-16-09, 03:40 PM
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I thought most front hubs had 10 and rear hubs 9? or have I imagined that?
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Old 03-16-09, 06:27 PM
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Originally Posted by bailout View Post
I thought most front hubs had 10 and rear hubs 9? or have I imagined that?
No you didn't. He has a front hub, and I count 10 bearings in that picture. IIANM.
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