SOHC.co.uk Forums > CB500/550
Rear Damper bottom bolt threads question?
Sesman:
That’s telling um🫣
K2-K6:
It's the shank (plain section under bolt head) that's important as it should fit the shock bore a sliding fit to make the joint design work correctly regarding load and stress distribution.
One side located by that bore/shank, the other by threads in the body. It's a half floating, if you like, joint design that utilises low bolt torque to stop it coming undone, but with very high shear resistance to avoid failure.
Laverdaroo:
oooo, someone's tired! :o
Sesman:
--- Quote from: K2-K6 on November 14, 2022, 09:55:40 AM ---It's the shank (plain section under bolt head) that's important as it should fit the shock bore a sliding fit to make the joint design work correctly regarding load and stress distribution.
One side located by that bore/shank, the other by threads in the body. It's a half floating, if you like, joint design that utilises low bolt torque to stop it coming undone, but with very high shear resistance to avoid failure.
--- End quote ---
Nice, informative explanation there. Thanks.
deltarider:
I maybe a nut where it concerns bolts, but on disassembly decades ago there must have been something wrong with the original bolts as it's not my habit to bin parts that can be reused. On the contrary: I've made it a sport to reuse as much original parts as possible. To give you an idea: it was not before this last summer, after 46 years and numerous, numerous adjustments, that I've renewed the 8mm lock nuts of the drive chain adjusters when they finally had become all too round.
Clearly I have made the wrong decision to use ordinary bolts which I happened to have at hand.
Why adding a nut would be 'asking for trouble' is not clear to me.
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