Spherical bushes anyone have experience?

[ausgolfer 0]

Hi guys and gals. Sorry the title should read spherical bearings**

Wondering if anyone has used spherical bearings for the suspension attachment points over the factory rubbers or aftermarket polyurethane items.

I'd love to hear some feedback on them. Road or track use.

 

I've heard:

1. They're preload free and give smooth suspension travel while maintaining correct geometry.

 

2. They give an extremely harsh ride with a lot of noise.

 

3. They're prone to early failure without proper cleaning and maintenance.

 

4. Regarding poly bushes, heard they have higher preloads which can cause jittery movement and binding/snap situations.

 

Any/all opinions welcome.

 

I am considering spherical bearings for the rear beam as an upgrade.