Cervelo R3 2013 BB
04-24-24, 11:20 AM
#26
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I just noticed that in addition to ruined BB bearings the BB axle is very scuffed. Not replacing it will put load and destroy the new BB bearings.
I wan't able to find any catalog for rotor axles.
The only thing I know is that the axle is 30mm in diameter and 123mm in length (including the hidden thread).
I wan't able to find any catalog for rotor axles.
The only thing I know is that the axle is 30mm in diameter and 123mm in length (including the hidden thread).
04-24-24, 11:24 AM
#27
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04-24-24, 02:06 PM
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It's like a steerer in a headset.
04-25-24, 12:36 AM
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I did some measurements and found that the "wear" in the BB axle was actually due to machining and was not in the place where the BB bearings sit. Where the BB bearings sit there is a miniscule cloudy wear that is no issue.
So I am only left with the following question:
One of the cranks has a nut/spacer threaded onto it. The thread is a bit worn out. I can tighten the spacer to a close but If I tighten it with force it will slide on the thread.
2 options:
1. Leave it as is : slightly closed, assuming that the pressure from both sides will keep it in place.
2. Close it and apply loctite thread locker.
Last edited by AvantGarden; 04-25-24 at 12:56 AM.
04-25-24, 06:33 AM
#30
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You were right Kotact! As always...
I did some measurements and found that the "wear" in the BB axle was actually due to machining and was not in the place where the BB bearings sit. Where the BB bearings sit there is a miniscule cloudy wear that is no issue.
So I am only left with the following question:
One of the cranks has a nut/spacer threaded onto it. The thread is a bit worn out. I can tighten the spacer to a close but If I tighten it with force it will slide on the thread.
2 options:
1. Leave it as is : slightly closed, assuming that the pressure from both sides will keep it in place.
2. Close it and apply loctite thread locker.
I did some measurements and found that the "wear" in the BB axle was actually due to machining and was not in the place where the BB bearings sit. Where the BB bearings sit there is a miniscule cloudy wear that is no issue.
So I am only left with the following question:
One of the cranks has a nut/spacer threaded onto it. The thread is a bit worn out. I can tighten the spacer to a close but If I tighten it with force it will slide on the thread.
2 options:
1. Leave it as is : slightly closed, assuming that the pressure from both sides will keep it in place.
2. Close it and apply loctite thread locker.
