odd balls

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Revolution
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Joined: 20 Feb 2013, 3:23pm
Location: North Somerset and Bristol

odd balls

Post by Revolution »

I've just taken my back wheel apart in order to replace the freehub which has died in this continuous wet weather and I was surprised to discover an odd number of ball bearings in the hub. The drive side had 9 1/4" balls and the left side had only 8. I've tried replacing them with 9 but it does seem very crowded in there. [I haven't tightened it up yet].
The wheel is from a
Whyte Charing cross. The only info I can find on-line is the Whyte brochure which states that the bike comes equipped with sealed bearings! although it does say in italics at the bottom that the brochure is accurate only at the time of printing :shock:
So - any ideas? odd balls or even?
Brucey
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Joined: 4 Jan 2012, 6:25pm

Re: odd balls

Post by Brucey »

probably odd balls.

If you assemble with 9 in the left side and tighten the cones finger tight (well finger tight) then you will see if the bearing starts to bind or not. If it does bind then 9 balls is too many.

cheers
-------------------------------------------------------------------------------
~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
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Revolution
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Location: North Somerset and Bristol

Re: odd balls

Post by Revolution »

I tried with 8 then with 9 as you suggested Brucey and I couldn't feel any difference in the bearings. So I have gone for 9.
Thanks for the advice :)
Valbrona
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Re: odd balls

Post by Valbrona »

You'll find the one you lost on the shed floor in a week or two. Next time you dismantle a hub it is best to do it in the kitchen. If the bearings spill out everywhere there is some kind of force at work that means they will end up under the cooker, so they are thus easy to find.
I should coco.
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531colin
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Re: odd balls

Post by 531colin »

I thought you were going to say.............

Valbrona wrote:You'll find the one you lost on the shed floor in a week or two. Next time you dismantle a hub it is best to do it in the kitchen.......


............................so there is a cake tin handy to catch the balls .......
Bike fitting D.I.Y. .....http://wheel-easy.org.uk/wp-content/upl ... -2017a.pdf
Tracks in the Dales etc...http://www.flickr.com/photos/52358536@N06/collections/
Remember, anything you do (or don't do) to your bike can have safety implications
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Revolution
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Re: odd balls

Post by Revolution »

there is some kind of force at work that means they will end up under the cooker,
I thought it was the fridge! :D
As it happens I always have a clean cloth under a hub when I take it apart in order to catch any runaways. This is the first time the hub has been dismantled so I can only assume that it was assembled with an odd number of balls.
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Revolution
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Re: odd balls

Post by Revolution »

Next time you dismantle a hub it is best to do it in the kitchen.
This is only possible when my wife is at her book group.
mig
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Re: odd balls

Post by mig »

what is the virtue of having differently sized bearings in front and rear wheels? to do with weight their weight bearing capacity?
nez
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Joined: 19 Jun 2008, 12:11am

Re: odd balls

Post by nez »

Disassembly in the kitchen is handy for putting parts through the dishwasher. But not to be reported to management, of course.
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Mick F
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Re: odd balls

Post by Mick F »

mig wrote:what is the virtue of having differently sized bearings in front and rear wheels? to do with weight their weight bearing capacity?
Yep.
Bigger balls are better at load carrying.
That's why you have bigger ones on the lower headset race in your headset.

As it happens, my Campag hubs are the same front and rear, though my old Campag hubs had bigger balls at the rear.
Mick F. Cornwall
mig
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Re: odd balls

Post by mig »

hmmm. so the difference between 3/16ths and 1/8th is significant in terms of load bearing?
Brucey
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Re: odd balls

Post by Brucey »

yes; the load bearing capacity goes with the square of the ball size IIRC, so the difference is considerably greater than pro-rata with ball size.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~
Vorpal
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Re: odd balls

Post by Vorpal »

When I disassemble bearings, I put a tea tray with a tea towel in it under the bearings. the tray catches them & the towel keeps them from bouncing all over :)
“In some ways, it is easier to be a dissident, for then one is without responsibility.”
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Malaconotus
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Re: odd balls

Post by Malaconotus »

nez dans le guidon wrote:Disassembly in the kitchen is handy for putting parts through the dishwasher. But not to be reported to management, of course.


Anyone else found Finish tablets leave an ugly patina on black anodised parts? Any tips on avoiding this or predicting which will tarnish?
mig
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Joined: 19 Oct 2011, 9:39pm

Re: odd balls

Post by mig »

how often are people re-packing/greasing their hubs in order to re-use the bearings? given their low cost i usually pop new ones in.
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