fixed to the threaded rod 12 and thereby rotates at the same speed and direction as the threaded rod 12 because the bearing member 24 rotates and the engagement member 14 does not it would be most advantageous to separate the two components with a thrust bearing 22 best seen in fig2 this arrangement reduces the friction that would occur and as a result acts to reduce the torque required to turn the threaded rod 12 a locking nut 26 is designed to secure the threaded rod 12 in the counterbalance system track as shown in fig2 the locking nut 26 has been designed to mate into a track end bracket 42 at a location along the threaded rod 12 remote from the engagement member 14 this fit prevents the nut 26 from turning while the threaded rod 12 is rotated it would be advantageous to have the locking nut 26 made from a material that reduces friction and wear such as for example bronze the strength of the material will also be an important consideration because the forces applied by it may be relatively high the distal end of the threaded rod 12 may have a mounting attachment 28 such as for example a hex head nut the attachment 28 allows an installer to control.