Ballscrew assembly having a low friction sleeve

摘要

A ballscrew assembly (101) may include a ballnut (125) configured to combat the negative effects of thermal expansion of dissimilar materials used within the ballscrew assembly (101). Moreover, the ballscrew assembly (101) described herein may have a decreased coefficient of friction as compared with a steel on steel housing and ballnut configuration. A ballscrew assembly (101) may comprise a ballnut (125) made from a first material, a ballnut housing (150) made from a second material, and a sleeve (100) made from a third material. The sleeve (100) may be positioned between the exterior of the ballnut and an interior of the ballnut housing (150) to reduce friction between the exterior surface of the ballnut (125) and an interior surface of the ballnut housing (150).