Q: What is the advantage of spherical bushings over rubber?

Rubber bushings deflect under load, which Tesla uses for isolation but which lets suspension geometry wander during hard cornering and braking. A sealed spherical bushing pivots freely without deflecting, so the wheel follows its intended path and alignment holds. Steering sharpens noticeably. Our arms combine sealed spherical bearings with quality rubber where isolation matters, keeping vibration out of the cabin.