[Land-speed] Trailer tie-down

[Dale Krumheuer]

Agreed Mark; Brinneling the bearings, caused by applying shock through the
bearings, essentially denting the bearings.
Picture a hammer repeatedly smacking the balls or tapers on the exact same
spot. The tapered or ball bearing as well as the raceway suffers from the
repeated impacts.
Similar to the flat spot on one's forehead from repeated smacks of amazement.
Dale
Cleveland OH
 

We judge of man's wisdom by his hope. ~ Ralph Waldo Emerson

--- On Thu, 10/8/09, ifixmgs at cox.net <ifixmgs at cox.net> wrote:

From: ifixmgs at cox.net <ifixmgs at cox.net>
Subject: Re: [Land-speed] Trailer tie-down
To: "Dick J" <lsr_man at yahoo.com>, "Joe Timney" <joetimney at dol.net>, "LAND
SPEED LIST" <land-speed at autox.team.net>
Date: Thursday, October 8, 2009, 5:59 AM

Another point to ponder is bearing oscillation - esp on modern taper bearings.
When the suspension is working (especially in a vibration prone environment)
and the bearing is not turning, all of the loads are felt in the same two to
four points of contact thru range of motion.  And it doesn't take a lot of
time or distance for the problem to develop.     Asian car mfgrs had
occassional bursts of  warranty problems with wheel bearings until they
figured out that the cars were not properly tied down during ship transport. 
Mark C

---- Joe Timney <joetimney at dol.net> wrote:
> Never allow the suspension to work...you are wearing out the shocks.
> Trailers don't have shocks so your car shock is doing double duty.
>
> M&R sells rubber blocks that can be mounted to the trailer to chock the
> frame up, then tie the car down. Blocks of wood transfer the shock to
> the frame, and sometimes break in pieces.
> joe
>
> Dick J wrote:
> > I know this subject has been discussed in various places before, but I've
> > never seen enough opinions one way or the other to make a decision.
> >
> > After the race car is loaded on (in) the trailer, is it best to tie it
down
> > from the tires or wheels and axle, leaving the car suspension free to
work; or
> > is it better to winch it down from the frame?  I've even heard of putting
jack
> > stands or big blocks of wood under the frame rails to keep the car
suspension
> > from working while the car is on the trailer.
> > 
> > I've been watching the professional car carrier trucks and I see both
systems
> > in use, although I think the majority of them have the car suspension
winched
> > down really tight, not allowing the car suspension any travel.
> > 
> > DickJ
> > In East Texas
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