An inertia disc mounts within the housing, mounting to {TAIL ~ the housing} through {HEAD ~ a spherical bearing} which permits rotational and radial displacement of the inertia disc relative to the housing 
An inertia disc mounts within the housing , mounting to { TAIL ~ the housing } through { HEAD ~ a spherical bearing } which permits rotational and radial displacement of the inertia disc relative to the housing
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH