Swiss Bottom Bracket Ball Bearings
03-17-14, 03:41 PM
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Swiss Bottom Bracket Ball Bearings
Do Swiss bottom brackets use 1/4" or 6mm ball bearings?
I am wondering about the bottom bracket on my 83 Peugeot PFN10.
I am wondering about the bottom bracket on my 83 Peugeot PFN10.
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1973 Schwinn Super Sport
1986 Schwinn Peloton
1976 Raleigh Super Course Mk II(for wife)
1983 Gitane Super Corsa
1991 Trek 750 Multitrack
1973 Schwinn Super Sport
1986 Schwinn Peloton
1976 Raleigh Super Course Mk II(for wife)
1983 Gitane Super Corsa
1991 Trek 750 Multitrack
03-17-14, 03:44 PM
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Swiss made or Swiss thread. In any case, just about all bearing balls used on bicycles are imperial size, so most likely 1/4"
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03-17-14, 04:06 PM
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Should be a French, Stronglight made (They usually did not put any brand marks on them), Swiss threaded BB on that 83 PSV....
Other than the Swiss threading, there's nothing unusual about the BB, so 1/4" bearings should work.
Other than the Swiss threading, there's nothing unusual about the BB, so 1/4" bearings should work.
03-17-14, 04:18 PM
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I mean Swiss thread. I had thought my bottom bracket to be English thread because a Shimano cup would start to thread on but stopped. I did not try to force it any further. Since then I have read that is a common characteristic of a Swiss threaded bottom bracket.
An ad for some Swiss threaded cups on ebay said that it came with caged 6mm bearings. There is not a big difference between 6mm and 1/4" but it probably makes a difference in a bearing.
An ad for some Swiss threaded cups on ebay said that it came with caged 6mm bearings. There is not a big difference between 6mm and 1/4" but it probably makes a difference in a bearing.
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1973 Schwinn Super Sport
1986 Schwinn Peloton
1976 Raleigh Super Course Mk II(for wife)
1983 Gitane Super Corsa
1991 Trek 750 Multitrack
1973 Schwinn Super Sport
1986 Schwinn Peloton
1976 Raleigh Super Course Mk II(for wife)
1983 Gitane Super Corsa
1991 Trek 750 Multitrack
03-17-14, 04:26 PM
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I mean Swiss thread. I had thought my bottom bracket to be English thread because a Shimano cup would start to thread on but stopped. I did not try to force it any further. Since then I have read that is a common characteristic of a Swiss threaded bottom bracket.
An ad for some Swiss threaded cups on ebay said that it came with caged 6mm bearings. There is not a big difference between 6mm and 1/4" but it probably makes a difference in a bearing.
An ad for some Swiss threaded cups on ebay said that it came with caged 6mm bearings. There is not a big difference between 6mm and 1/4" but it probably makes a difference in a bearing.
If still not sure, buy either ball, take the spindle and cup and "paint" the ball tracks with a dry marker. Assemble in your hand and rpotate the spindle pressing fairly hard. Take apart and spot the ball track by the line left. If it's centered fairly well in the ground area you have the right balls.
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An ounce of diagnosis is worth a pound of cure.
Just because I'm tired of arguing, doesn't mean you're right.
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
03-17-14, 04:33 PM
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Pretty much 100% sure that all pre-1985 Peugeot PSV had Swiss threaded BB shells....
03-17-14, 04:51 PM
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This is a PFN10, but is probably the same.
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1973 Schwinn Super Sport
1986 Schwinn Peloton
1976 Raleigh Super Course Mk II(for wife)
1983 Gitane Super Corsa
1991 Trek 750 Multitrack
1973 Schwinn Super Sport
1986 Schwinn Peloton
1976 Raleigh Super Course Mk II(for wife)
1983 Gitane Super Corsa
1991 Trek 750 Multitrack
03-17-14, 04:58 PM
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03-18-14, 10:09 AM
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I mean Swiss thread. I had thought my bottom bracket to be English thread because a Shimano cup would start to thread on but stopped. I did not try to force it any further. Since then I have read that is a common characteristic of a Swiss threaded bottom bracket.
An ad for some Swiss threaded cups on ebay said that it came with caged 6mm bearings. There is not a big difference between 6mm and 1/4" but it probably makes a difference in a bearing.
An ad for some Swiss threaded cups on ebay said that it came with caged 6mm bearings. There is not a big difference between 6mm and 1/4" but it probably makes a difference in a bearing.
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