The CW Bearing Rack and Ball Nut Assembly (RBNA) Series are renowned for their versatility and high performance. CW Bearing offers various grades of ball screw accuracy from rolled too high precision ground ball screws. RBNA designs include end return, return caps, tube returns and specials to meet your needs and requirements. We offer gothic form to control axial clearance. Ball screws offer low drag torque, high efficiency, and ball sizes to carry the required load for the number of necessary duty cycles. Axial lash or a preloaded assembly can be determined and offered during the design stage. Our design team can support from concept ideas to full design using ISO calculations to produce the best product. Our manufacturing teams can make a few prototypes to support your idea to high volume production found in automotive and industrial production. CW Bearing is a one stop company to complete your linear motion solutions.