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