[python] Re: Steering Pivots Survey

  • From: Olaf Johansson <olaf@xxxxxxxxxxxx>
  • To: python@xxxxxxxxxxxxx
  • Date: Fri, 15 Sep 2006 16:46:18 +0200


On 15 sep 2006, at 15.31, Jürgen Mages wrote:

I'll be using a pair of these (or similar). They are designed for the
steering in autos. They let you adjust steering angle. You'll find them on Lennart's pajton. 

Rod end bearings I guess. The rubber seems to be a sealing to protect
the ball bearings.



Dunno bout the name, here are the intestines:


GIF image



For the survey I am especially interested in the weight and the
long term durability of the various pivot types.



In the case with the above they come in many different sizes and shapes.



E.g. the cup and cone BBs are really bad. My wife?s P1 now has a pivot
play of about 3 degrees. It is still rideable, but tends to wobble
during fast downhills.



And one of these days ... GROINK, and it will be stuck.



On the other hand cartridge BBs seem to hold up very well. My P3
steering pivot has had its 18.000 km and still shows no play. And
the BB was already old when I assembled it. And I really did not
go easy with this bike ...



My monty has done few miles on the road so I cannot contribute with any serious input. I checked the bb last week for any play, but it feels as good as new.


Olaf




Cheers,
Jürgen.
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