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Absolute rotary encoders use optical, mechanical, or magnetic indexing for angular measurement. They do not lose their position after power-down, but instead provide absolute position upon power-up without requiring a home cycle or any shaft rotation.
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AC motor drives interface controllers to AC motors. They match the control signals (voltage and power levels) as well as the signal type (analog or digital). They also provide power conversion, amplification, and the sequencing of waveform signals.
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AC motors include single, multiphase, universal, induction, synchronous, and gear motors. They also include servomotors.
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Ball screws, lead screws, and ACME screws are used to convert rotary motion or torque into thrust or linear motion.
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Ball splines provide nearly friction-free linear motion while simultaneously transmitting torsional loads. The path of the bearing balls is straight, not helical, which allows for a very efficient coupling device suitable for a variety of applications.
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DC motor drives act as the interface and power supply between a motion controller and a DC motor.
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DC motors are most commonly used in variable speed and torque applications. They include brushless and gear motors, as well as servomotors.
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English pitch timing belts mate with same-pitch timing pulleys in power transmission systems where maintenance of speed ratio is an important design consideration. English pitch is the distance between belt teeth based on inches (in).
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English pitch timing pulleys mesh with same-pitch timing belts on synchronous drives where maintenance of speed ratio is important. These pulleys have an inch-based pitch designation.
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Gearboxes and gearheads are speed reducers that consist of a set of gears, shafts, and bearings in an enclosed housing. In converting inputs to outputs, they reduce RPM and increase torque.
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Gearmotors consist of an AC or DC motor with an integral gearbox or gear head that steps delivered speed up or down.
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Gears are mechanical devices that transmit power and motion between axes.
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Incremental rotary encoders are multi-turn sensors that use optical, mechanical, or magnetic index-counting for angular measurement. They contain no absolute reference, but instead count relative to the turn-on position.
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Intrinsic safety (IS) barriers are devices that limit the current, voltage, and total energy delivered to a sensor in a hazardous area or flammable environment in order to prevent an explosion.
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Light curtains are photoelectric transmitters that project an array of synchronized,parallel infrared light beams to a receiver unit. When an opaque object interrupts one or more beams, the light curtain controller sends a stop signal to the guarded machine. Light curtains are used as personal safety devices around hazardous machinery or for permiter guarding.
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Linear bearings are used in applications where a component needs to be moved along a straight line with high accuracy.
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Linear encoders sense and digitize linear position change for positional measurement and feedback to control systems.
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Linear guides and rails provide a smooth, precision, guiding surface on which the rolling element of a linear bearing rides.
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Linear position sensors is a general search form for all linear position / displacement detection product areas.
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Linear shafts are elongated, rod-shaped devices that provide linear or rotary motion for power transmission applications.
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Linear slides are simple linear motion devices composed of a stationary base and a moving carriage. Linear stages are slides with a drive mechanism that provide controlled, precise positioning along a linear axis.
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Machine safeguarding, presence sensing devices control machine operations and protect personnel by detecting the presence of objects that could interfere with or be harmed by machinery.
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Mechanical safety interlock switches couple a moveable guard door with the power source of the hazard. When the guard door is opened, the power is isolated, ensuring that the machine does not pose a hazard while an operator requires access.
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Motion control systems contain matched components such as controllers, motor drives, motors, encoders, user interfaces and software. Components in these systems are optimally matched by the manufacturer.
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Motion controllers range from simple linear controllers to complex, user-programmable modules that act as controllers within complex integrated multi-axis motion systems.
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Noncontact safety interlock switches couple a moveable guard door with the power source of the hazard. For noncontact actuating interlock switches, the guard door is linked to the control circuit contacts via a magnetic or electronic field.
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Safety mats are presence-sensing devices used to guard a floor area around a machine or robot.
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Safety sensors are used for machine safeguarding. Types of safety sensors are break-a-beam switches, interlocks and tag out devices, perimeter guards, photoelectric safety sensors, safety blocks, safety interlock switches, and safety sensor switches.
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Servo drives provide electrical drive outputs to servo motors in closed-loop motion control systems where position feedback and corrective signals optimize position and speed accuracy.
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Stepper motor drives power unipolar and bipolar stepper motors in full step, half step, and microstep motion control applications.
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Stepper motors use a magnetic field to move a rotor in small angular steps or fractions of steps. They provide precise positioning and ease of use, especially in low acceleration or static load applications.
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Two hand safety modules help prevent injury to machine operators by keeping their limbs away from dangerous machine movement.
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