Need some advice on material selection

[JohnUlaszek]

Astro
The key with poly is to use the crush sleeve OD as the bearing sufraces for the ID of the poly bushing, this means your sleeve should have an overall length slightly longer than the bushing stackup.

The thrust load is where the problem comes in, you want to handle thrust without creating bind under braking which creates a non-linear rate of change in bump travel. This may not be a signifigant issue for most, but if you are going for an idealized setup, you will want to at least think about this.



Your right about the fixture, post weld machining does not make any sense.

John Or Paul, you want to correct or add to this???

John