45TAC10DB P4 Nachi Ball Screw Support Bearing 45mm x 100mm x 20mm Made in Japan 45TAC10DB P4 Nachi Ball Screw Support Bearing, Bearing has the ability to achieve high precision and high performance on your applications, 45TAC10DB supports precision actuators in a wide range of applications such as machine tools, precision measuring equipment, and robot technologies, Made in Japan.