BEARING AND ROTARY DEVICE MAINLY FOR TELESCOPE Russian patent published in 2015 - IPC G02B23/16 

FIELD: instrument making.

SUBSTANCE: bearing and rotary device (BRD) contains the base, the fork with the hollow pin installed on the base with a possibility of rotation with reference to the azimuthal axis, the drive of rotation with reference to the axis. The pin is installed by means of the base fixed adjusting radial bearing support located in the upper part of the pin, and the end bearing support (EBS) located in the lower part of the pin. EBS with the possibility of limited movement along the longitudinal axis which is geometrically matched with the azimuthal axis, is connected to the spherical toe interacting with the thrust bearing installed on the base. BRD is fitted with the electromagnetic unloading device (EMUD) with a possibility of ensuring of pre-set unloading of EBS in the axial direction and a control and control system to control the value of EBS unloading.

EFFECT: improvement of accuracy of guidance of the telescope when tracking with a creeping speed.

9 cl, 12 dwg