APPARATUS FOR REMOVING BEARING CLAMPING SLEEVES Russian patent published in 1996 - IPC

FIELD: mechanical engineering, in particular, dismantling of roller bearing clamping sleeves in railway car journal box. SUBSTANCE: apparatus has hydraulic cylinder with pushing piston and handle and annular working hydraulic cylinder, with cavities of hydraulic cylinders being communicated through pipelines. Apparatus is fixed relative to sleeve to be dismantled by extracting sleeve which is screwed with its one end on thread of clamping sleeve. Conical part on outer surface adjacent to clamping part of extracting sleeve is in contact with inner conical surface of annular hydraulic cylinder body. Restricting bead on end of extracting sleeve opposed to threaded end is engageable with working hydraulic cylinder body end. Extracting sleeve is provided with longitudinal recesses made at side adjacent to threaded end and conical part. EFFECT: increased efficiency, simplified construction and enhanced reliability in operation. 3 dwg