What would cause sudden toe-out?

on the spherical bearings. Does anyone have a source or part number for bearing that someone could build around that are suitable for the X?
 
Bobkat said:
on the spherical bearings. Does anyone have a source or part number for bearing that someone could build around that are suitable for the X?
Click to expand...
Currently on eBay.. Minebea MS14101-9C. These are 9/16" (0.5625) ID, 1.0937" OD. These can be made to work for both front & rear. The rear uses 14mm (0.5511") bolts (ok with 9/16" ID bearings), fronts will need to have sleeves made to convert the 0.5625" ID to 10mm (0.394") with the proper length to fit the brackets. Identical applies to the rear. ~Significant machine work required~
www.ebay.com

Minebea MS14101-9C THT9VPH, 9/16" Bore, Self-Aligning Spherical Plain Bearing | eBay

For sale is a Minebea, Self-Aligning, Spherical Plain Bearing, No. MS14101-9C. The bearing is brand new and unused and comes in the original box wrapped in the factory sealed plastic bag. This bearing is New-Old-Stock which was to be used for an aerospace application but is surplus. I have...
www.ebay.com

The Minebea data sheet:

Alternative from Pegasus Racing.. These are just ok enough with the "Grumman Grove"..

Aurora Wide Series PTFE-Lined Spherical Bearing | Pegasus Auto Racing Supplies

These Aurora Spherical Bearings have a wider ball and race than other designs. The heat treated ball and alloy steel, PTFE-lined race provide great durability.
www.pegasusautoracing.com www.pegasusautoracing.com


PBS note doing a conversion much like this in their x1/9 book, what they did for the rear of grinding down the spherical bearings to fit then using 1/2" ID spherical bearings with welded on washers on the rear brakes is not good design/engineering practice. PBS modified the front radius rods by external threading the rod then applying a 5/8" rod end to the rod fitted to a shop made bracket. The shop made bracket is ok, the oem brackets can be modified to work with a spherical rod end.

~What is NOT good, external threads on that radius rod. All external threads are inherent stress risers. Compounding this problem is die to lathe single point cut threads which must be properly thread run out groove radiused or that will be the location where the rod will fail. Far better way is to drill & tap (internal thread) the radius rod to accept a 7/16" spherical rod end. This negates the stress riser problem innate to external threads and the 7/16" spherical rod end is MORE than strong enough. This modification allows much easier and precise caster adjustment over the stock oem flexi bushing set up.


Yes, all this was done on the LeMons racer... part of how/why that suspension is completely adjustable.
Bernice
 
Last edited:
You must log in or register to reply here.
Back
Top