LINEAR MOVEMENT ROTARY MOTION CONVERTER COMPRISING BEARING BEARINGS AND TWO SPEED ADVANCE MECHANISM CONTAINING SUCH CONVERTER

摘要

P ROTARY MOTION CONVERTER WITH LINEAR MOVEMENT INCLUDING ROLLING BEARINGS AND TWO SPEED ADVANCE MECHANISM CONTAINING SUCH CONVERTER. / P P THE ASSEMBLY HAS AN ENDLESS SCREW 14 WITH EXTERNAL THREADS 16, 16 BALL NUTS 20, 20 TAPS EMMANCHES ON THE SCREW 14, BALLS 22, 22 INTERPOSED BETWEEN THE SCREW 14 AND THE NUTS 20, 20 AND CAGES 24, 24 NOW THE BALLS, A SPIRE OF THE TAPPING OF THE NUT 20 HAVING A WIDTH DIFFERENT FROM OTHER SPIERS IN ORDER TO PRE-CONTAMINATE SIDE BALLS TO ELIMINATE GAME BETWEEN NUTS AND SCREW. / P P APPLICATION IN PARTICULAR TO MECHANISMS FOR MOVEMENT OF LIKE-AND-FORWARD FOR MACHINING MACHINES . / P