These are new versions of my slide bearings headsets. In contrast to my old version of the headset, where the contact sliding surfaces were created by a special anti-friction coating, which have worked well until now (near the end, the coating was quite worn out), I have now designed two new versions of the headset, where the sliding bearings are made out of either ceramics or special plastic material with very low sliding coefficient and high wear resistance.
Both ceramic and plastic headsets look the same from outside, the only difference is on the inside. According to first testings they seem to work very well.
Specifications of the Ceramic headset:
Specifications of the Plastic headset: