I doubt that the rubber has a torque tube effect on the suspension. The
resistance of the rubber to twisting just isn't enough to really affect the
motion of the shackles. Believe the rubber is bonded to the outer sleeve
just to keep the inner sleeve centered in the bushing. The inner bush is
slightly wider than the frame so the shackles don't rub up against the frame
when they flex. With the rubber bonded to the outer sleeve, the inner bush
is held in the middle. A bushing with the rubber completely gone can allow
the spring to mover enough to cause problems, like the tire tearing up an
inner fender, BTDT. Of course that explanation doesn't cover the
Polyurethane bushings, which I understand don't have an outer sleeve.
Aloha
Peter O
>From: "Alan Richer/CAM/Lotus" <Alan_Richer@Lotus.com>
>Reply-To: lro@works.team.net
>To: "lro" <lro@Works.Team.Net>
>Subject: Re: LRO: Re: Frame bushings
>Date: Fri, 8 Jun 2001 06:31:26 -0400
>
>
>Re: Idiotic question:
>
>Not idiotic...
>
>Problem is - the rubber needs to be bonded to the inner and outer sleeves -
>it's all of a piece, unlike the shock bushings which are separate bits.
>
>The purpose of this bushing is to act as a "rubber torsion spring" in
>support of the suspension - and if any of the bits are loose (rubber in
>sleeve, sleeve in chassis, or bolt in inner sleeve) this just isn't
>happening...
>
> ajr
>
>
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This archive was generated by hypermail 2b30 : Fri Jun 08 2001 - 17:51:24 EDT