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Motors • Servo Motors

Classified as a small, brushless motor, servo motors feature a built-in, automatic speed control device – typically an encoder or resolver – that stabilizes motor rotation. Servo motors are commonly used for motion control in robots and hard disc drives. When used with a hard drive, a servo motor moves the read/write heads to specified locations above spinning data-storage disks. Servo motors also move satellite dish feed horns so they are positioned to the polarity of a satellite signal. Three basic types of servo motors are used in modern servosystems including AC servo motors, DC servo motors, and AC brushless servo motors. Another servo motor type is the RC servo motor, which is a small box designed for use in hobby airplanes and cars. Servo motors are generally designed like an alternator, with most motors needing special control circuitry for electrical rotation.

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  • Baldor

    Baldor designs and manufactures high performance AC brushless, DC and stainless steel industrial servo motors for the motion control industry. Custom designs to your application are available. They offer three series' of AC servomotors for low inertia, high inertia and compact size applications.

  • Aerotech, Inc.

    Aerotech manufactures "U-Channel" brushless linear servo motors for robotics, actuators, tables/stages, and vision systems. The BLMUC servo motor is ultra-compact and measures 52.0 mm x 20.8 mm in cross section. The BLMC servo motor measures 57.2 mm x 31.8 mm. The BLM servo motors measure 86.4 mm x 34.3 mm for both high-accuracy and high-throughput applications.

  • Trust Automation

    Trust Automation manufactures one series of brush servos and two series' of brushless servo motors. Each industrial servo motor integrates easily into existing applications because they are designed as "drop-in-replacement" units. Reduced torque ripple is also a feature common to all of their servos.

  • Parker Hannifin Corp.

    Parker servo motors come in a variety of sizes and configurations to suit a broad array of applications. Their Max Plus Linear Servo Motors feature continuous force up to 325 lbs/1446N and peak force up to 1620 lbs/760N. The SL Series Brushless Linear Servo Motors are a single row magnet bar type.

  • Exlar Corporation

    Exlar Corporation is a designer and manufacturer of industrial servo motors, roller screw linear actuators, rotary servo motors and other electronic products for motion control applications. Products offered feature load ratings to 40,000 lb, speeds to 60 in/sec, completely sealed units, servo drive operation and integrated actuator control/drive. Custom products are also available.

  • Arc Systems, Inc.

    ARC manufactures a complete line of AC servomotors that meet MIL-S-22432 and SAE ARP-497 requirements. These two phase miniature squirrel cage servomotors range from sizes 8 to 23 and operate at 60 Hz or 400 Hz. They are available in 2, 4, 6, 8, and 12 pole designs. They also manufacture and design custom servomotors that can operate at 60-400 Hz.

  • Anaheim Automation

    Anaheim Automation manufactures AC servo motors, servo drives/controllers, and servo motors with integrated drives/controllers. Their 200-1000 watt medium inertia AC servo motor offers torque from 273-4,064 oz-in, maximum speed of 1,500-4,500 RPM, and flange sizes of 60-130mm. Anaheim's 1500-2500 watt medium inertia AC servo motor offers torque from 1,350-8,114 oz-in, maximum speed of 1500-3000 RPM, and flange sizes of 80-180mm. There 3000-5000 watt medium inertia AC servo motor offers torque from 6,089-16,299 oz-in, maximum speed of 1500-3000 RPM, and 180mm flange size. Anaheim Automation also produces servo motors with integrated drives/controllers offering torque up to 195 ounce-inches, 400 watts power, and NEMA 34 sizes in two stack lengths.

  • Micromo

    Micromo has developed and built the "Quickshaft" linear servomotor to meet the need for small size linear motors. Features include body dimensions of 12.5 X 12.5 X 49.4 mm, a 6.31 mm rod diameter, rod length of 82 to 154 mm, continuous force of 3.09 to 3.13 N, peak force of 9.26 to 9.40 N, stroke length of 20 to 80 mm, and resolution of 6 µm. The self-supporting coil windings combined with a high precision sliding cylinder filled with permanent magnets gives this motor a high performance-to-volume ratio.

  • Nippon Pulse America

    The Nippon Pulse linear shaft servomotor is a brushless direct drive tubular designed unit. Features include a simple two part design with a non-critical air gap, high precision ironless design, non-contact, stroke lengths of 20mm to 4.6M, various shaft diameters ranging from 4mm to 100mm, a maximum continuous force of 585N and an achievable peak force of 2340N. This linear shaft servomotor can be used in high speed or high accuracy pick and place or dispensing applications, scanners that need precise movement, applications involving varying force requirements, and applications that need low power requirements.

  • Click Automation

    Click Automation is a distributor of servo motors, servo amplifiers and ethernet based motion control products for brush and brushless servo motors. They offer brush servo motors from 0.86" - 4" diameter with continuous torques up to 28 in-lb, brushless servos from 1.3" to 4.75" diameter with continuous torques over 700 oz-in., and low cost brush gearmotors with up to 2" diameters available with or without encoder feedback. Brush servo motors come is seven series' and are designed for medical instrumentation, image processing, semiconductor processing, mass data storage equipment, computer peripherals and office automation. Brushless servo motors are of a slotless design consisting of a basket winding inserted into a ring lamination containing no teeth or slots.

  • Teknic

    Teknic offers the Hudson family of brushless DC servo motors designed with 3-D FEA software to optimize magnet shape, stator skew angle, and rotor geometry. Both the INS Series and IND Series are industrial grade, 3-phase permanent magnet servo motors. Each servo motor comes with an integrated encoder, a dual-shielded pigtail, and a fully-assembled connector (no “flying leads” to hand wire). Hudson servo motors have a very high “Km” (motor constant) per unit volume so you’ll get maximum power for the size motor used. The neodymium-rich permanent magnets have a thick nickel-plating for high resistance to corrosion and hydrogen absorption. They have a rated maximum temperature of 200ºC and offer a low current draw of 40mA.

  • SureServo

    SureServo manufactures three models of medium inertia and five models of low inertia servo motors. Low inertia models come in 100 W, 200 W, 400 W, 750 W, and 1 kW, and speeds up to 5000 rpm. Medium inertia servo motors come in 1 kW , 2 kW and 3 kW, and speeds up to 3000 rpm. Square flange mounting with metric dimensions of 40 mm to 180 mm (including 60, 80, 100 and 130 mm) flanges are available. Other servo motor features include keyless drive shafts, integrated encoders with 2,500 (x4) pulses/revolution plus marker pulse, optional 24V DC spring-set holding brakes, standard hook-up cables, and a CN1 connector with a DIN-rail mounted ZIPLink break-out kit.

  • Moog, Inc., Industrial Controls Div.

    Moog manufactures electronically commutated synchronous AC servomotors with permanent magnet field excitation. They are specifically designed for highly dynamic servo industrial applications where positioning times of 30 msec or less are normal. The Fastact G Series offers wide power ranges at continuous stall torque ratings from 0.15 to 77 Nm (1.3 to 681 lb-in). Moog's Fastact J-Series servomotor is designed to offer more dynamics and higher performance in a variety of industrial applications. The Fastact T/F/W Series comes in a wide array of models and sizes available at continuous stall torque ratings from 0.6 to 710 Nm (5.3 to 6284 lb-in) with natural, fan or liquid cooling.

  • B & R Industrial Automation

    B&R is a manufacturer of servo motors and drives. The 8LS three-phase AC servo motor series has been specially developed for use in high-performance applications, including consumer goods and products in the plastic, packaging, metal, and food and beverage industries. Features include NdFeB permanent magnets, high overload capability and peak torque, low torque ripple, and high dynamic torque at high speeds. The 8JS three-phase synchronous servo motors are electronically commutated, permanently excited synchronous motors for applications that require positioning precision and excellent dynamic characteristics. The 8LT three-phase synchronous servo motors offer a short, compact design that can eliminate the need for angular gears in many cases.

  • TRM International

    TRM designs and manufactures AC and DC servomotors, and DC servo drives. Their DC servomotors offer options that include encoders, tachometers, brakes, special shafts, special mountings, connectors, different windings and environmental sealing. DC servomotors provide continuous stall torques from 0.4Nm (0.3 lb-ft) to 30Nm (24 lb-ft.). TRM's AC brushless servomotors come in three series'. The HDM Series are high density, compact, low inertia brushless servomotors, designed for small spaces where rapid acceleration and deceleration are required. The HR/HRS Series are also low inertia but are larger in size than the HDM Series. The HJ Series are high inertia brushless AC servomotors where high stability at low speed is necessary.

  • Automation Direct

    Automation Direct is a distributor of SureServo low and medium inertia servo motors/systems. The low inertia servo systems offer motor models in 100 W, 200 W, 400 W, 750 W and 1 kW, with speeds up to 5,000 rpm (4,500 rpm for 750 W and 1 kW models). These servo units feature square flange mounting with metric dimensions of 40, 60, 80, and 100 mm flanges, keyless drive shafts, and an integrated encoder with 2,500 (x4) pulses/revolution plus marker pulse (once per revolution). SureServo medium inertia servo systems offer motor models of 1 kW, 2 kW and 3 kW, with speeds up to 3000 rpm. Features include square flange mounting with metric dimensions of 130 and 180 mm flanges, keyless drive shafts, and optional 24 VDC spring-set holding brakes.

  • Elmo Motion Control, Inc.

    Elmo Motion Control manufactures servo motor/drive packages that offer quiet and reliable systems (inaudible and electrical). Several feedback options are available such as incremental encoders, analog encoders and absolute encoders. Servo motor and drive systems are designed for high speed, low inertia applications. Flange sizes are available in 40, 62, 80 and 130 mm. Output power is rated from 30- 2700 watts. Standard encoders available are 2048 P/R, 2500 P/R and 3000 P/R. Servo motors have a maximum speed rating of 3000/5000 rpm and are totally enclosed. Other features include operating temperatures of 0-50 C, rated time continuous, and G-force ratings of 49 m/s2 (5G).

  • G&L Motion Control

    G&L Motion Control offers Centurion servo systems that feature digital amplifiers delivering 500W to 15kW continuous power, low and medium inertia types, NEMA mount servo motors, high torque, small package, wide voltage supply ranges of 100 to 240 VAC, single and three phase output, four different motor families, several choices for command source, over voltage, current and temperature protection, and fully digital current, velocity and position loop control.

  • H2W Technologies, Inc.

    H2W Technologies manufactures DC linear brushless and brush servo motors, as well as voice coil linear actuators for closed loop servo applications. The 3-phase brushless linear (or AC servo) motor is designed for closed loop servo, long stroke linear motion applications, up to speeds of 240 in/sec (6 m/sec). The DC brush linear servo motor is designed for open or closed loop servo, long stroke linear motion applications, at speeds up to 100 in/sec (2.5 m/sec) and as low as 1 in/sec (25 mm/sec).

  • Harmonic Drive LLC

    Harmonic Drive manufactures the KDU Series of direct drive servo motors that feature resolution of 8.38 million divisions/revolution, and high precision 10 arcs/sec absolute position accuracy (repeatability of ± 0.5 arc/sec). Other features include stopping stability in servo lock model less than ± 2 pulses (±0.31 arcs/sec.), high torque (7 Nm or 15 Nm, depending on model), a motor OD of 130 mm, a hollow opening diameter of 50mm, and mechanical accuracy run out on output side of 2µm. These direct drive servo motors are used for semiconductor manufacturing systems, FPD manufacturing equipment, optical machines, and measurement, analytical and test systems.