Spring Plate Bearing Kit
Our patented PolyBronze suspension bearings set a new standard for performance, ride quality and ease-of-installation. Regular polyurethane/plastic suspension bushings are obsolete!
PolyBronze is a precision bronze bearing encased in a polyurethane jacket. The combination delivers a smooth-ride with the extreme performance of a metal bearing.
- No Squeaks
- Smooth ride quality
- Easy installation
- Integral Grease fittings and grooves
Why PolyBronze Bearings Are Superior To Plastic Bushings
Suspension mounts are coarse sheet metal pressings. They tend to be out-of-round and have irregularities that deform ordinary polyurethane bushings, pinching and binding the friction surface. Polyurethane is “grippy” with an inherently high coefficient of friction and combined with pinching polyurethane bushings create a lot of friction. The result is a harsh ride and reduced tire adhesion.
PolyBronze have a rigid bronze bearing core that does not deform. The polyurethane jacket absorbs mount irregularities while the bronze inner bearing remains true, providing a free-moving machined-fit that rides on a precision race. Provided grease fittings make re-lubrication a breeze and a figure 8 groove keeps grease in place.
The combination delivers zero squeaks and friction-free suspension movement. Well suited to street or track, ride quality.
356 used two different systems of of spring plates, cover plate, bushings, and torsion bars
Pre-A, C and CS chassis:
Came equipped with 553mm long torsion bars. Cover plates have no center hole and a 4-nub style bushing. Spring plates have a short “tube” section that is not visible when installed because it does not pass through the cover plate. Outer bushings are larger 48mm Id and inner bushings have a smaller 45mm ID.
PolyBronze may be used on these spring plates by fashioning a sleeve for the spring plate to increase its diameter to 48mm.
Alternatively Elephant Racing PolyBronze, QuickChange spring plates, and Torsion bars can be used on these cars provided all 4 components (torsion bars, cover plate, spring plate, bushings) are converted together.
A and B chassis:
Came equipped with 627mm long torsion bars. Cover plates have a hole in the center. Spring plates have a visible “tube” section that passes through the cover plate. Both inner and out bushings are larger ID about 48mm.
Elephant Racing PolyBronze bearings are designed for direct fit with this combination.