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Bearing Swap

Old 05-09-15, 10:48 AM
  #1  
mtalbert
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Bearing Swap

Are there any negative sides to switching from loose bearings to caged bearings? I'm working on a Peugeot PH10L and all the bearings are loose except 1 set on the top side of the front fork. I assume its probably been replaced before. The loose bearings are just a PITA and was looking for a easier solution.
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Old 05-09-15, 11:15 AM
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Just as there's no real reason to use retainers, except convenience, there's no reason not to. If you can find the right retainer, go ahead and use it.

Either way the bearing runs on the balls alone.
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Old 05-09-15, 12:12 PM
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Only difference, besides the convenience, is that many retainers don't have as many balls within them as one could load if using loose balls. There are some retainers which do use a full compliment though and I would try to find this type (good luck). I don't see any advantage to have less load capacity because of fewer contact points (balls). Andy.
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Old 05-09-15, 12:29 PM
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There is one disadvantage to caged bearings, the cage or race can break. This is what happened in the original bottom bracket of one of my bikes recently, causing a horrible clunking noise when the broken bits get caught up during rotation of the spindle. When I overhauled the BB, I replaced the caged bearings with loose bearings. Of course, you can't beat the convenience of installing a caged bearing set.
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Old 05-09-15, 12:38 PM
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Originally Posted by Warren128 View Post
There is one disadvantage to caged bearings, the cage or race can break. This is what happened in the original bottom bracket of one of my bikes recently, causing a horrible clunking noise when the broken bits get caught up during rotation of the spindle. When I overhauled the BB, I replaced the caged bearings with loose bearings. Of course, you can't beat the convenience of installing a caged bearing set.
When this occurs, what is the likelihood of those fragments damaging the cups and cones?
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Old 05-09-15, 12:58 PM
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Originally Posted by SquidPuppet View Post
When this occurs, what is the likelihood of those fragments damaging the cups and cones?
I can't speak for every case, but my BB bearing cups and spindle survived the broken fragments, I'm glad to say.
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Old 05-09-15, 01:12 PM
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Originally Posted by SquidPuppet View Post
When this occurs, what is the likelihood of those fragments damaging the cups and cones?
Very low. The retainers are made of softer materials because makers know they could break. But they rarely do break in a properly adjusted bearing because there's no -zero - load on them.

Broken retainers are the result of a problem, not the cause. A loosely adjusted baring may be the biggest cause since it allows balls to be wedged apart at the load point, applying stress on the retainer. Dirt or corrosion may also break a retainer since it can push balls along the track rather than allowing them to roll freely.
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