The abutment surface of {TAIL ~ each} of the transverse seals and the corresponding contact surface each have an orientation and shape conforming at least approximately to {HEAD ~ a spherical surface} having a center at the geometric center of the one bearing disposed on a side of the respective transverse seal opposite the deflection control pressure chamber 
The abutment surface of { TAIL ~ each } of the transverse seals and the corresponding contact surface each have an orientation and shape conforming at least approximately to { HEAD ~ a spherical surface } having a center at the geometric center of the one bearing disposed on a side of the respective transverse seal opposite the deflection control pressure chamber
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH