member facilitates maintaining engagement of the downhole tool in its working position so that interruptions of operations are minimized application_number US 201213714597 A description as discussed above broadly the bearing assemblies comprise a slidable member and a compensator member referring to the particular embodiment of fig1 2 bearing assembly 20 comprises a slidable member operatively associated with a compensator member slidable member comprises mandrel 21 having outer wall surface 22 inner wall surface 23 defining mandrel bore 24 and longitudinal axis 27 outer wall surface 22 includes shoulder 25 mandrel 21 is operatively associated with a rotating downhole tool such as drill bit 80 which is operatively associated with rotating tubular 78 through any known fastener device known in the art including but not limited to threads not shown an upper end of rotatable tubular 78 is operatively associated with a motor not shown activation of the motor causes rotatable tubular 78 to rotate which in turn causes drill bit 80 to rotate so that an object such as the formation of a wellbore can be drilled or abraded away secured to outer wall surface 22 of mandrel 21 is shroud 30 shroud 30 includes upper end 31 lower end 32 outer wall surface 33 and inner wall surface 34 defining shroud bore 35 upper end 31 includes opening 36 in fluid communication with shroud bore 35 opening 36 defines shroud shoulder 38 lower end 32 of shroud 30 is secured to outer wall.