Ball guide for play-free torque transferring lift movements - has shaft and ball cage with complementary cross sections

摘要

The ball guide for play-free torque-transferring lift movements has a shaft axially displaceable but rotationally secured in a housing, and a ball race set in the annular space between the shaft and housing. The shaft and ball race (4) have polygonal cross-sections which are complementary with each other and with the housing bore (2') accommodating same. The shaft (1), ball race (4) and housing bore (2') can each have a triangular cross-section. ADVANTAGE - Simplified structure comprising three simple parts.