Linear Motion Bearings

SV and SVW Slide Ways non-recirculating linear motion bearings

NB Corp. of America (Hanover Park, IL) introduced SV and SVW Slide Ways non-recirculating linear motion bearings for use in optical and measurement equipment where high-precision movement is required. The SV style consists of two roller cages with precision rollers in a cross arrangement and four rails with V-shaped raceways. The SVW has one rail with V-shaped grooves on both sides and two SV rails.

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Magnetic Angle Encoder

The ECM 2400 absolute modular magnetic angle encoder

HEIDENHAIN (Schaumburg, IL) released the ECM 2400 absolute modular magnetic angle encoder with functional safety for machine feedback. It is designed for machine tool applications that require a sturdy encoder with medium accuracy. The encoder is suitable for applications with high rotational speeds, angular accelerations, and limited space due to a low overall height of the complete system. It works on B-axis lathes with motorized milling spindles or on the A and C axes of milling machines where a large hollow shaft encoder is necessary.

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Isolation Valves

The PVR20 Series of media isolation valves

KOGANEI International America (Fremont, CA) introduced the PVR20 Series of media isolation valves that isolate aggressive gas and liquid media. Streamlined passages minimize internal volume to less than 60 microliters using rocker-type design. Features include a metal-free wetted area for corrosion resistance, power-saving circuit, service life of up to 10 million cycles, and operating pressure range from -11 psi to 43.5 psi.

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Proximity Sensors

ProSense sensors

AutomationDirect (Cumming, GA) offers ProSense 8-mm triple-sensing inductive proximity sensors in flush and non-flush mounting options that can detect ferrous metals up to a distance of 6 mm. Also available are inductive proximity sensors with a metal face to provide more durable protection, with environmental ratings of IP65/66/67/68 and IP69K. They are available in 8-, 12-, 18-, and 30-mm barrel sizes with M8 or M12 quick-disconnect connections.

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Servo Drives

FM060-25-CM servo drives

FM060-25-CM micro-sized, high-power servo drives are available from ADVANCED Motion Controls (Camarillo, CA). Rated to output 25A continuous and 50A peak, the drives are suited for mobile and portable applications such as mobile robotics, material handling, and warehouse automation. The mounting footprint is 50.8 × 25.4 mm with a height of 22.1 mm. The drives use CANopen for network communication and they can be configured to work with any servo motor because the control loops for current, velocity, and position can be individually tuned to match the application’s motor, load inertia, supply voltage, and motion requirements.

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Absolute Encoder

The Model A58SB absolute encoder

Encoder Products (Sagle, ID) offers the Model A58SB absolute encoder for harsh factory and plant floor environments. The shaft encoder is available in single-turn resolution of 16 bits and multi-turn resolution up to 43 bits. Features include SSI and CANopen® communications, 58-mm-diameter housing, 6- or 10-mm shaft, available synchro or clamping flange, M12 axial or radial connector, operating temperature range of -40 to 85 °C, and sealing rating of IP65 on the shaft, with the balance of the unit rated to IP67.

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Microcontroller

The Servotronix softMC compact microcontroller

STXI Motion (North Aurora, IL) offers the Servotronix softMC compact microcontroller that enables an Ethernet/IP-equipped programmable logic controller (PLC) to control any motion control component including robots, drives, and motors. It enables machine builders to add multi-axis motion control to any existing system. The controller delivers Industry 4.0 machine-to-machine communication.

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Solenoid Valves

VYKA, VYKB, and VZDB media-separated solenoid valves

Festo (Islandia, NY) offers VYKA, VYKB, and VZDB media-separated solenoid valves for vacuum as well as pressures of up to 3 bar and Kv values up to 969 ml/min. The EPDM, FKM, and FFKM polymers used for the separating diaphragms can withstand aggressive media, protecting the interior of the valves and preventing corrosion. All three valves can control liquid amounts in the microliter or milliliter range in various dosing and flow applications.

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Magnetic Encoder

The TRK38 single-turn magnetic encoder

TWK-Elektronik (Dusseldorf, Germany) introduced the TRK38 single-turn magnetic encoder measuring 38 × 38 mm. Position resolution is 16 bits per revolution and a certified EtherCAT FSoE interface enables transmission of safety-related signals to the higher-level controller or to a safety relay, as well as programming of the sensor. Features include an aluminum housing for operation in conditions such as high vibration and shock loads. The non-contact, wear-free measuring design is suitable for safety applications in a range of applications.

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Motion Controller

ION®/CME N-Series Digital drive

Performance Motion Devices (Westford, MA) announced ION®/CME N-Series Digital drives that provide motion control, network connectivity, and amplification. The drives feature a PCB-mountable package with three power output levels: 75, 300, and 1,000 watts. They support brushless DC, DC brush, and step motors and provide profile generation, servo compensation, stall detection, field-oriented control, electronic camming, and other motion control functions. Features include support for Ethernet, CAN, serial, and SPI communications.

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Absolute Encoder

The AEMT-12/16 L absolute encoder

Faulhaber Micromo (Clearwater, FL) released the magnetic AEMT-12/16 L absolute encoder with a preset multiturn resolution of 16 bits (65,536 revolutions) and a single-turn resolution of 12 bits (4,096 steps) for commutation, speed control, and motion control. The multiturn count can be reset via an additional interface pin during start-up. Position data can be queried by an SSI Interface with BiSS-C Protocol. With a line driver, the interface is designed differentially and is based on the RS-422 standard, so it is possible to position the motor/encoder unit up to five meters away from the controller. The encoder can be connected to a main power supply as well as a backup battery or alternative energy storage.

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Motor/Actuators

The Exlar® GTX060 integrated motor/actuators

Curtiss-Wright Actuation Division (Chanhassen, MN) offers the Exlar® GTX060 integrated motor/actuators. The industrial electromechanical actuators provide force, precision, and repeatability and offer continuous force ratings up to 2,668N (600 lbf) and speeds to 1,016 mm/sec (40 in/sec) in both VAC and VDC power options. Features include high-capacity planetary roller screws, splined rod option eliminating the need for an external anti-rotational device, IP66S environmental protection, connection to most motion/motor controllers, and removable front seal bushings to simplify maintenance and re-greasing of the nut assembly.

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Torque Limiter

The ECH torque limiter

ENEMAC (Kleinwallstadt, Germany) introduced the type ECH torque limiter with an integrated chain wheel. In case of an overload, the torque limiter disengages in a few seconds and the transmission of the torque stops. To activate the machine’s emergency stop, the switching movement of the disc spring must be sensed by a proximity switch. When the engine starts slowly, the limiter engages automatically after one revolution. The safety coupling is available in 11 sizes for disengagement torques between 2 and 900 Nm; the sprocket size can be determined by the customer.

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Gear Units

MAXXDRIVE and MAXXDRIVE XT parallel and right-angle industrial gear units

MAXXDRIVE and MAXXDRIVE XT parallel and right-angle industrial gear units are available from NORD Gear (Waunakee, WI). The MAXXDRIVE gears offer torques from 132,800 to 2,301,200 lb-in, ratios from 5.54 to 30,000:1, and 2.5 to 8,075 HP across 11 sizes. MAXXDRIVE XT right-angle gear units with thermally optimized housings offer torques from 132,800 to 663,800 lb-in, ratios from 6.14 to 22,91:1, and 30 to 2,825 HP across seven sizes. The gears’ UNICASE one-piece housings allow for multiple mounting surfaces. The units are constructed with case-hardened and hard-finished gearing as well as a roller bearing system for quiet operation. A motor can be attached via industry standard NEMA or IEC adapters.

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Brushless DC Motors

DFA68 and DFA90 series brushless DC motors

Nanotec Electronic US (Stoneham, MA) offers DFA68 and DFA90 series brushless DC motors with integrated encoder for applications that require precise positioning in confined spaces. Both motors are equipped with a 3-channel encoder and have a resolution of 4096 CPR. They feature field-oriented torque, speed, and position control. The inductive scanning principle, which is insensitive to magnetic interference, enables the encoder to be integrated directly into the motor. The DFA90-E has a diameter of 90 mm and rated power of 168 W at a rated speed of 2,000 rpm. The DFA68-E has a diameter of 68 mm and achieves 106 W at a rated speed of 3,500 rpm.

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Motion Platform

The Z-Theta motion platform

Haydon Kerk Pittman, a business unit of AMETEK® Advanced Motion Solutions division (Waterbury, CT), announced the Z-Theta motion platform for linear and rotary point-to-point motion. The configurable design is a modular bolt-in package that integrates into OEM assemblies.

The platform features the ScrewRail® linear actuator that combines guidance and linear transmission in a co-axial profile. Dual-motion integration with a pair of stepper motors adds rotary (theta) motion in a manner that reduces motion system size.

The platform can be customized for specific performance needs with a variety of lead screw resolutions, free-wheeling and anti-backlash nut selections, stepper motor configuration options, and optical encoder line counts.

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Motion Design Magazine

This article first appeared in the August, 2021 issue of Motion Design Magazine.

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