Lotus Elan

Selecting Rod End Bearings for front suspension

PostPost by: EricB » Tue Nov 23, 2021 4:58 pm

Looking at the Aurora rod end bearings (PTFE lined) available from Pegasus Racing, for my adjustable front suspension on my '66 SE Elan that I am currently doing a ground-up restoration on, I see a choice between carbon steel rod end ones at about $20 each or the alloy steel versions at about $50 each. If I am intending to use the car for auto slaloms and track days rather than serious racing, am I OK with the carbon steel ones?
EricB
New-tral
 
Posts: 14
Joined: 07 Sep 2008

PostPost by: Baggy2 » Thu Nov 25, 2021 10:25 pm

I'm sure you'll get more learned responses but from memory carbon steel is relatively brittle - alloy steel is much tougher. I think I'd go for the alloy type.
Cheers
Baggy
Baggy2
Second Gear
Second Gear
 
Posts: 177
Joined: 05 Feb 2010
Location: South East England

PostPost by: bitsobrits » Fri Nov 26, 2021 1:15 am

Just ask yourself if your life s worth the extra $120 and you'll have your answer.
Steve

Elan S1 1963-Bourne bodied
Elan S3 1967 FHC pre airflow

Formerly:
Elan S1 1964
Elan S3 1966 FHC pre airflow
Elan S3 1967 FHC airflow
Elan S4 1969 FHC
Europa S2 1970
Esprit S2 1979
bitsobrits
Third Gear
Third Gear
 
Posts: 353
Joined: 27 Apr 2011
Location: Omaha, NE area

PostPost by: StressCraxx » Fri Nov 26, 2021 4:53 am

EricB wrote:Looking at the Aurora rod end bearings (PTFE lined) available from Pegasus Racing, for my adjustable front suspension on my '66 SE Elan that I am currently doing a ground-up restoration on, I see a choice between carbon steel rod end ones at about $20 each or the alloy steel versions at about $50 each. If I am intending to use the car for auto slaloms and track days rather than serious racing, am I OK with the carbon steel ones?


The $20 Carbon steel ones are not lined and they will wear quickly. They are not made to the tolerances or precision of the alloy version. In addition, either version will have the bearing exposed to the elements. Not ideal. So, the solution are these:
https://www.aircraftspruce.com/catalog/ ... ealsit.php

In addition, since the bearings are in single shear, one should use a capture washer under the head of the fixing bolt in case of joint bearing failure.
https://www.pegasusautoracing.com/docum ... =TECH00014

For background on the above, since you are making an engineering change, read "Prepare to Win by Carroll Smith, http://www.carrollsmith.com/books/index.html
There is no cure for Lotus, only treatment.
User avatar
StressCraxx
Coveted Fifth Gear
Coveted Fifth Gear
 
Posts: 1194
Joined: 26 Sep 2003
Location: San Francisco Bay Area, California

Total Online:

Users browsing this forum: No registered users and 7 guests