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#1
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Changing over to ceramic bearings.
I was wondering if anyone has retrofitted their bike to aftermarket
ceramic bearings? How hard would it be if one were to get the properly sized sealed bearing to do this one their own? I used to change the bearing on my inline skates and skateboards myself, so I think technically it should be pretty straight forward. I have tried to find info on the web about what size the bearings are in the bottom bracket, the guide and tension pulleys, and of course the wheelsets, though I think I can figure those out, it would be nice to see the specs in writing form the manufacturer, and the Shimano website's exploded view does not give this. any advice on if this is worth the effort, and any info on bearing sizes would be greatly appreciated. Thanks Dave |
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#2
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Changing over to ceramic bearings.
On 16 Sep 2006 10:48:17 -0700, "G8RRPH" wrote:
I was wondering if anyone has retrofitted their bike to aftermarket ceramic bearings? How hard would it be if one were to get the properly sized sealed bearing to do this one their own? I used to change the bearing on my inline skates and skateboards myself, so I think technically it should be pretty straight forward. I have tried to find info on the web about what size the bearings are in the bottom bracket, the guide and tension pulleys, and of course the wheelsets, though I think I can figure those out, it would be nice to see the specs in writing form the manufacturer, and the Shimano website's exploded view does not give this. any advice on if this is worth the effort, and any info on bearing sizes would be greatly appreciated. For what they sell those bearings for they should be able to do a bit of research for you. Ron |
#3
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Changing over to ceramic bearings.
G8RRPH wrote: I was wondering if anyone has retrofitted their bike to aftermarket ceramic bearings? If you want specific info, it would help if you would offer some. BTW... if you changed all your bearings over to ceramic you'd save a small fraction of a percent in power. Is it worth the money and hassle to you? |
#4
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Changing over to ceramic bearings.
RonSonic wrote: On 16 Sep 2006 10:48:17 -0700, "G8RRPH" wrote: I was wondering if anyone has retrofitted their bike to aftermarket ceramic bearings? How hard would it be if one were to get the properly sized sealed bearing to do this one their own? I used to change the bearing on my inline skates and skateboards myself, so I think technically it should be pretty straight forward. I have tried to find info on the web about what size the bearings are in the bottom bracket, the guide and tension pulleys, and of course the wheelsets, though I think I can figure those out, it would be nice to see the specs in writing form the manufacturer, and the Shimano website's exploded view does not give this. any advice on if this is worth the effort, and any info on bearing sizes would be greatly appreciated. For what they sell those bearings for they should be able to do a bit of research for you. Replacing all the steel bearings on a bicycle with ceramic bearings will increase the average riding speed by 0.0001487645676%! -- Tom Sherman - Here, not there. I am supporting cannibalism by eating more nuts. |
#5
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Changing over to ceramic bearings.
I was wondering if anyone has retrofitted their bike to aftermarket
ceramic bearings? How hard would it be if one were to get the properly sized sealed bearing to do this one their own? I used to change the bearing on my inline skates and skateboards myself, so I think technically it should be pretty straight forward. I have tried to find info on the web about what size the bearings are in the bottom bracket, the guide and tension pulleys, and of course the wheelsets, though I think I can figure those out, it would be nice to see the specs in writing form the manufacturer, and the Shimano website's exploded view does not give this. any advice on if this is worth the effort, and any info on bearing sizes would be greatly appreciated. Thanks Dave It's not worth the effort. A properly adjusted and lubricated bearing makes only a tiny addition to the rolling resistance of the bike and rider in motion. A switch to ceramic will not increase your speed one bit, nor will it make pedaling any easier. But they will cost more. Ted -- Ted Bennett |
#6
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Changing over to ceramic bearings.
I know of only one case - a guy blew out his FSA BB and decided to try
their ceramikc BB. It did not last nearly as long as the original... (Sorry, no numbers to give you.) G8RRPH wrote: I was wondering if anyone has retrofitted their bike to aftermarket ceramic bearings? How hard would it be if one were to get the properly sized sealed bearing to do this one their own? I used to change the bearing on my inline skates and skateboards myself, so I think technically it should be pretty straight forward. I have tried to find info on the web about what size the bearings are in the bottom bracket, the guide and tension pulleys, and of course the wheelsets, though I think I can figure those out, it would be nice to see the specs in writing form the manufacturer, and the Shimano website's exploded view does not give this. any advice on if this is worth the effort, and any info on bearing sizes would be greatly appreciated. Thanks Dave |
#7
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Changing over to ceramic bearings.
On Sat, 16 Sep 2006 15:46:48 -0500, richard
wrote: I know of only one case - a guy blew out his FSA BB and decided to try their ceramikc BB. It did not last nearly as long as the original... (Sorry, no numbers to give you.) I thought long life was one of the features besides the slightly lower friction. One article claimed that if you put just one or two ceramics in with the steels, the ceramics because they are so hard, crush any foreign particles into a fine dust, making the whole assembly last a lot longer. G8RRPH wrote: I was wondering if anyone has retrofitted their bike to aftermarket ceramic bearings? How hard would it be if one were to get the properly sized sealed bearing to do this one their own? I used to change the bearing on my inline skates and skateboards myself, so I think technically it should be pretty straight forward. I have tried to find info on the web about what size the bearings are in the bottom bracket, the guide and tension pulleys, and of course the wheelsets, though I think I can figure those out, it would be nice to see the specs in writing form the manufacturer, and the Shimano website's exploded view does not give this. any advice on if this is worth the effort, and any info on bearing sizes would be greatly appreciated. Thanks Dave |
#8
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Changing over to ceramic bearings.
Tom Sherman writes:
I was wondering if anyone has retrofitted their bike to aftermarket ceramic bearings? How hard would it be if one were to get the properly sized sealed bearing to do this one their own? I used to change the bearing on my inline skates and skateboards myself, so I think technically it should be pretty straight forward. I have tried to find info on the web about what size the bearings are in the bottom bracket, the guide and tension pulleys, and of course the wheelsets, though I think I can figure those out, it would be nice to see the specs in writing form the manufacturer, and the Shimano website's exploded view does not give this. any advice on if this is worth the effort, and any info on bearing sizes would be greatly appreciated. For what they sell those bearings for they should be able to do a bit of research for you. Replacing all the steel bearings on a bicycle with ceramic bearings will increase the average riding speed by 0.0001487645676%! .... while shortening the life of the bearing races as their stress increases from a smaller contact patch with the harder bearing balls. And, what is the purpose of this exercise? Jobst Brandt |
#9
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Changing over to ceramic bearings.
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#10
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Changing over to ceramic bearings.
On 16 Sep 2006 13:03:03 -0700, "Johnny Sunset aka Tom Sherman"
wrote: RonSonic wrote: On 16 Sep 2006 10:48:17 -0700, "G8RRPH" wrote: I was wondering if anyone has retrofitted their bike to aftermarket ceramic bearings? How hard would it be if one were to get the properly sized sealed bearing to do this one their own? I used to change the bearing on my inline skates and skateboards myself, so I think technically it should be pretty straight forward. I have tried to find info on the web about what size the bearings are in the bottom bracket, the guide and tension pulleys, and of course the wheelsets, though I think I can figure those out, it would be nice to see the specs in writing form the manufacturer, and the Shimano website's exploded view does not give this. any advice on if this is worth the effort, and any info on bearing sizes would be greatly appreciated. For what they sell those bearings for they should be able to do a bit of research for you. Replacing all the steel bearings on a bicycle with ceramic bearings will increase the average riding speed by 0.0001487645676%! I wouldn't have thought that much. Ron |
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