SCREW GEAR Russian patent published in 1994 - IPC

FIELD: mechanical engineering. SUBSTANCE: screw pair has a screw provided with threads having opposite directions, nut that interacts with the screw, stops, and locators. The nut is made of a rolling nut provided with rolling bodies made of one or several pairs of oppositely arranged balls. The stops are made of two lock nuts rigidly secured to the screw. The lock nuts have threads with opposite directions. Each locator of nut displacement is made in block with corresponding lock nut and made of projecting turn of the thread of the lock nut. EFFECT: expanded operating capabilities. 1 dwg