The Linear Motion Ball Rail Systems are engineered for precise linear operation at high speed. Prasad NC Machine Systems [P] Ltd. Offers Linear Motion Ball Rail Systems. Prasad NC Machine Systems [P] Ltd. Is an ISO 9001:2000 registered organization that manufactures CNC machines like CNC VTL machine, VTL machine, etc. The Ball Rail Systems use recision-machined steel balls as rolling elements promoting exceptionally low resistance with smooth, stable operation at low cost. These ball rail systems allow the user to combine guide rails and runner blocks in a number of versatile ways.