Servo actuators are used to provide position control, utilizing linear motion in order to maintain proper functioning of another mechanism or equipment part. At its most basic, a servo is a small device that operates based on responding to error-sensing feedback.
While servomechanisms are used to provide and transmit a precise amount of energy used to correct a performance error through another mechanism that will provide the required work, servo actuators actually function to correct the performance error without the help of an additional device. Read More…
Del-Tron Precision, Inc. was founded in order to serve the needs of automated equipment manufacturers for innovative, high quality and reasonably priced anti-friction linear bearings and associated products such as valve actuators.
Utilized in a variety of applications and industries, the products designed and manufactured at Burr Engineering & Development include ball screw actuators and similar mechanisms.
At IAI America, we are dedicated to providing value and originality with any product that we provide to you. Our linear actuator model types include slider, folded-motor slider, rod, and single, double, or ball-bushing type guided rod actuators. Our staff members are committed to being available in order to bring you full customer satisfaction while delivering the products that will best suit...
Isotech provides a number of different linear actuator & lifting columns for various applications. These products can be customized to meet your specific load requirements and travel distances. You can trust the accuracy of these solutions and the experts at Isotech is always available to assist you with your needs. Feel free to contact them today to learn more information!
ElectroCraft hybrid stepper-based linear actuator solutions provide original equipment manufacturers the precision, performance and reliability that is required for a wide variety of motion control positioning applications. From medical and laboratory equipment to industrial machinery, ElectroCraft offers configurable or completely customizable solutions in three unique product designs: linear...
Our linear actuators are at the top of the market and on the leading edge of innovation. If you need a new design or modification to an existing design, we are the true professionals that you need to call.
Tusk Direct’s specialty is linear motion components. We offer slides, bearings, lubricants and assemblies compatible with pneumatic or electric actuators and actuator systems.
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Since servo actuators provide such precision control, they are often utilized in industries such as: industrial manufacturing, for applications such as factory automation, instrumentation and material handling robotics; electronics, for use in beam steering applications, radio and remote-controlled vehicles and more; marine and aerospace, in automatic navigation systems; textile, for use in web guiding systems; and medical, for precision motion control of medical devices such as patient lifts.
Servo actuators can be powered through hydraulic, pneumatic and electromechanical means; however, electromechanical actuators and pneumatic servo actuators are much more common than hydraulic. The choice of actuation depends on the power, speed and precision requirements of the application.
Servo actuators consist of three main components: a servo motor, a set of gears and an output bearing. There are two main types of servo motors: brush and brushless. Well-suited for long stroke applications, a brush servo motor has a commutator with mechanical brushes that connect the power source to the armature, or a rotating coil that induces voltage from motion through a magnetic field.
Brushless servo motors, on the other hand, provide commutation through electrical means and, as a result, offer many advantages over the brush motor design such as a longer service life due to less mechanical wear and tear. The most common types of gears used in servo actuators are worm gears and planetary gears. Worm gears are gears that have a curved and recessed throat, whereas planetary gears consist of three or more small outer gears that rotate around a larger, central gear.
The output bearing is commonly encased in a hard, protective housing, typically made from metals such as aluminum, zinc or steel. The output bearing functions to allow for constrained linear motion between two or more mechanisms. In servo actuators, the bearing operates at an angle. The angle generally ranges from 0 to 180º, not exceeding 210º, and its movement is limited due to a mechanical stop that is attached to one of the gears.
