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  • Straighten up and go linear
    with ball-screw systems, and changes as the system ages. They can be fairly inexpensive if high accuracy isn't required. High-accuracy, low-backlash ball screws are costly and require a great deal of maintenance. Linear motors now offer a better option, particularly in applications where speed and accuracy
  • Integrated motion module chops $500 from machine cost
    costs. Orthodyne Electronics of Irvine, Calif., used the miniature recirculating ball slide and Acme leadscrew drive from Rexroth Star, on two robotic wire bonders to provide a compact feeder. The low-profile leadscrew and rail increases productivity and reduces the footprint of the automated wire
  • Getting to know stepper motors
    and amount, are controlled by stepper motors. Electronic pipettes are linear-stroke devices that utilize digital linear actuators to precisely control the amount of fluid being dispensed. The shaft of the actuator is coupled to a pipette fitted with a piston. A microprocessor controls the step rate
  • What You Ought To Know About Ball Screws
    Whether the goal is high precision or low cost, ball screws are often the best option for linear actuation. Thomson Saginaw Ball Screw Co. Miniature ball screws are an efficient low-cost option for linear actuation. The mechanisms are used in a variety of automotive applications and come in sizes
  • Stepper motors tread on servosystem turf
    Stepper motors are often less expensive than servos in position-control systems that don?t need micron accuracy. A novel approach to a stepping-motor design is in this bidirectional digital linear actuator from Thomson Airpax Mechatronics. The motor is a modified rotary stepper with a rotor

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