Motion Control

Valve Motor

Eaton Corp. (Cleveland, OH) released the HP30 high-pressure disc valve motor for mobile off-highway applications requiring up to 30,000 in-lbs of intermittent torque. Options include a hydraulic parking brake offering up to 3,570 Nm of static holding torque. The device includes bearing pack, break, output shaft, and port mounts. Other features include a no-load pressure drop lower than 200 PSI at 25 GPM of flow. A two-piece balance ring provides mechanical and volumetric efficiencies. Continuous pressure is 170 liters per minute (45 GPM) at 310 bar (45,000 PSI); intermittent pressure is 265 LPM (70 GPM) at 345 bar (5,070 PSI). Maximum inlet pressure is 400 bar (6,000 PSI).

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Fringe Tracing Software

Engineering Synthesis Design, Inc. (Tucson, AZ) released the IntelliWave ™ interferometric measurement software package to monitor fringe change in fluid flow and thermodynamic analysis applications. The software allows for parallelism, angle, ROC, tool offset, homogeneity, and absolute measurements. Users can monitor over 30 fringe parameters (area, size, temperature, etc.), and may use any camera or scanner for data acquisition. Features include intuitive user interface, interactive spreadsheets, multi-region unwrapping and masking, real-time user interaction, and classical, shearing and speckle analysis.

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Rotary Stages

Aerotech (Pittsburgh, PA) released the ALAR series of direct-drive, large-aperture rotary stages. Coming in five aperture sizes (100, 150, 200, 250, and 325 mm), the units are designed for angular positioning and velocity control, and feature zero backlash, no gear wear, or gear vibration. Features include 45 – 300 rpm continuous rotation speed, continuous or limited travel, axial load capacity of 300 – 1,000 lb, and low wobble. Vac 10 – 6 torr compatible versions are available. The stage is 65 – 160 mm tall. Two configurations, standard profile (SP) and low profile (LP), are available.

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Ball Bearing Mounts

Asymmetric Fasteners, Inc. (Hackettstown, NJ) released the Torksleeve B mounting for ball bearings, compatible with roller, needle, linear, or plain bearing types. The unit provides quick assembly time, is compact, and lightweight. The unit also rebuilds in the field, and mounts to metal or plastic walls. The asymmetric thread design self-locks and is resistant to vibration. Tightening of the nuts causes the slotted sleeve to contract, gripping the bearing and clamping the unit to the frame.

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Brushless Motor Drive

Intelligent Motion Systems (IMS, Marlborough, CT) released the MDrivePlus motion control system for brushless motor applications. The unit features 20 microstep resolutions to 51,200 (full step, degrees, metric, and arc minutes), a motion control system-on-a-chip, electronic gearing, 6,385 bytes of program storage, and analog input to 10 VDC. Drive voltage ranges include +12 to +75 VDC and 120 and 240 VAC. The housing is chemical resistant and the unit has a cast aluminum heat sink. Outputs are configured for sourcing or sinking, and the unit features an auxiliary logic power input.

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Motor Drive Module

International Rectifier (El Segundo, CA) released the IRMCT3UF1 fully integrated high-reliability hybrid motor control modules enabling digital, sensor-free vector control of permanent magnet motors. The module combines digital control, analog interface, and power stage. Speed and torque control are provided with commutation or position sensors. Sinusoidal current control enables current startup sequencing and low loss space vector pulse-width modulation. EMI is suppressed. The unit’s algorithm accommodates motor parameter variation for compatibility with brushless DC and permanent magnet AC motors.

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Hub-Fastening Gears

Sterling Instrument (New Hyde Park, NY) released the “S1268Z-...M” series of 84 combination aluminum-acetal gears. Coming in metric and imperial sizes, the gears are 20° pressure angled, AGMA Q10 and ISO Class 7. Sizes range from 21 – 210 teeth with outer diameters ranging from 0.958 – 4.083". The gears are designed to mate with hubs accepting shaft sizes from 0.0900 – 0.2498" in diameter, and come in 24, 32, 64, and 72 diametral pitches with a face width of 1/8". Other features include noise reduction, a small gear hub envelope, and Fairloc® integral hub fastening system technology.

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