BEARING EXTRACTOR Russian patent published in 2023 - IPC B25B27/06 

FIELD: devices for dismantling assemblies, the elements of which are interconnected by a press fit.

SUBSTANCE: invention can be used to dismantle bearings, specifically, to remove thrust bearings from the shafts of cantilever NK560 type oil pumps. The bearing puller contains a ring consisting of two half-rings detachably connected by means of a bolt connection, and is equipped with a second ring consisting of two half-rings detachably connected by means of a bolt connection and two studs with an external thread at the ends. Each semi-ring contains a through threaded hole for a stud, threading at the ends of each stud and in the through holes of each pair of rings is made versatile, while the inner diameter of one ring corresponds to the outer diameter of the shaft step, the size of which is larger than the inner diameter of the bearing seat, and the inner diameter of the second rings corresponds to the outer diameter of the shaft stage, the size of which is smaller than the inner diameter of the bearing seat, each pin is made long, ensuring the installation of the puller rings on different shaft steps, namely from the bearing side, where the shaft step is larger than the inner diameter of the bearing seat, and at the end of the step a shaft whose diameter is smaller than the inner diameter of the bearing seat.

EFFECT: simplifying operational maintenance and ensuring the removal of bearings without damage, with the possibility of their reuse, including from stepped shafts, including thrust bearings from the shafts of cantilever NK560 type oil pumps.

2 cl, 13 dwg