GAS-STATIC BEARING Russian patent published in 2009 - IPC F16C17/02 F16C32/06 F16C33/18 

FIELD: machine building.

SUBSTANCE: invention is related to machine building, mostly may be used in machines and devices with moving parts that operate in conditions of gas lubrication, for instance in spindles of metalworking machines. Gas-static bearing consists of body, chamber that communicates to supply manifold with insert installed inside body to close chamber. Insert is arranged in the form of bush from gasproof material and porous inserts installed in bush holes. Porous inserts are arranged in the form of keys and are installed in two rows, at that width of every insert is equal to 0.15-0.20 of bearing diametre, length of every insert is equal to 0.26-0.35 of bearing length. Number of inserts in one row of supercharge is equal to 10-14. Separation of supercharge lines makes 0.5 of bearing length and defines distance between centers of every rows inserts along axis of insert symmetry, which is perpendicular to bearing ends.

EFFECT: increased intensity of shaft operation and reduction of time required for shaft running-out for working frequency.

2 dwg