MACHINING METHOD OF RADIAL-THRUST BEARING PRIOR TO OPERATION, AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2013 - IPC F16C33/58 F16C33/64 C23C26/00 F16C19/34 

FIELD: machine building.

SUBSTANCE: machining of several bearings (2 to 6) of the same standard size is performed at one and the same time. Mixture of glycerine with ultradisperse copper powder, copper chloride, tin chloride and iron chloride is used as process medium. After activation of rotation drive and application of load to working surfaces of bearings during 15-20 minutes, final anti-friction nonabrasive machining takes place, and as a result, a film is formed on race tracks of races and rolling bodies of bearings. A set of bearings is assembled on the device that includes drive shaft (1) and bearing fastening shell (9). External races of bearings are installed in pairs in shells (9) containing guide bushings (10) and having the possibility of translational movement in bath (12) filled with process medium, and internal races are installed through bushings (2) and have the possibility of being moved axially on drive shaft (1). At that, the first bushing (2) adjoins thrust washer (5) installed in a fixed position in the end face of shaft (1), and the last bushing (2) of the set receives axial load from stock (6).

EFFECT: improving machining efficiency, reducing labour intensity and power consumption, as well as improving durability of the bearing as a whole, owing to improving physical and mechanical and wear-resistance properties of its working surfaces.

4 cl, 2 dwg