FIRST POST! I OWN CHASSIS!
So I'm making spherical bearing shells to fit the control arms in my Fiero.
Like these:
http://secure.chassisshop.com/partlist/6455/But with custom profiled exteriors to fit the Fiero control arms.
I will be using spacers cut from 3/4" drill rod in order to clamp the spherical bearing between the mounting tabs with the through bolt.
The problem is rod grit and rain water will wear the spherical bearing quickly.
The rear control arm pivots are coaxial, and the motion is purely rotational, so I can use a shaft seal that installs in the housing and seals to the spacer. Housing ID isn't set yet, but can be as small as 1 3/16" or as big as 1 3/8".
However, the pivots in the front lower arms are neither coaxial nor even parallel. This will cause planar in addition to rotational motion and is the reason I have to use a spherical bearing and can't use sleeve bearings or needles.
Are there shaft seals that can tolerate shafts with significant eccentricity relative to the housing bore?
Are there motorcycle brake caliper piston dust boots available for piston diameters 19-25mm and housing diameters 31-35mm?
Any other thoughts on what I could use to seal these?