Motion Control

Motor/Driver/Encoder

Lin Engineering (Santa Clara, CA) offers the SilverPak 23DE, and integrated NEMA 23 high-torque, 1.8° bipolar step motor; microstepping driver; and encoder. The system is 2.25" wide and is available in three body lengths: 2.52", 2.96", and 3.89". Depending on stack size, the integrated motor/driver is capable of producing up to 294 oz-in of holding torque. It operates from 15 VDC to 48 VDC and the available phase current ranges from 0.3 amps to 3 amps peak.

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Thermoplastic Insert Couplings

R+W America (Bensenville, IL) has introduced the SERVOMAX TX1 series of molded thermoplastic insert couplings that are suitable for pump drive and servo applications. The couplings are chemical-compatible and tolerant to heat, and have an elastomer element that is press-fit between two molded coupling halves, providing zero backlash and concentricity. The elastomer insert is available in various shore values. The TX1 series is designed for a pure keyway connection and is bored to customer specifications. Shaft mounting is achieved via keyway and a set screw. Sizes are available for torque capacities ranging from 2 Nm to 660 Nm, and bore diameters from 8 to 45 mm and 0.375 to 1.75".

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Brushless Gearmotor

Midwest Motion Products (Watertown, MN) offers the MMP-B23-150H-24V GP52-035 BR-005 brushless DC gearmotor/brake that features Hall Cell Commutation. The gearmotor measures 2.3" in diameter by 9.2" long, and has a keyed output shaft of 12 × 25 mm. Mounting is accomplished with four face-mount M5 threaded holes, equally spaced on a 40-mm diameter B.C.

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Shock Absorber

ACE Controls (Farmington Hills, MI) has introduced the SC 190-HC high-cycle industrial shock absorber for use in high-speed production equipment. It features quick rod-ready time and short stroke, as well as rapid repeat strokes and time through stroke. It is available in three models with varying effective weight ranges. The shock absorbers are suitable for use in packaging industry equipment, rotary actuators, slides, small and medium robotics, machine tools, and pick-and-place operations.

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Worm Gear Speed Reducers

Flexbloc right-angle worm gear speed reducers from NORD Gear Corp. (Waunakee, WI) stop oil leaks and eliminate bolt-on covers and split casting, encompassing all gearing within a single piece. They feature an aluminum alloy housing that is corrosion resistant. The speed reducers are lubricated with a food-grade synthetic lubricant that does not require replacement.

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Rail Brakes

The RB Series of linear profile guide rail brakes from Nexen Group (Vadnais Heights, MN) use spring force to secure the load in holding applications. Each brake clamps directly onto the center of the guide rail for positive braking and holding in all axes. The brakes eliminate drive train backlash and elasticity, and are spring-engaged and air-released for power-off. Other features include an adjustable facing gap, a large friction facing contact area, and field-serviceable friction facing replacement.

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Tie Rod Cylinder

The CA2 metric tie rod cylinder series from SMC Corp. of America (Indianapolis, IN) features aluminum die-cast covers to reduce weight. Cushioning capabilities were improved by increasing the volume of the cushion chamber and by using a floating cushion seal. The seal reduces movements of the piston rod at lower operating temperatures. The new design features allow 30% more kinetic energy absorption during the cushioning at the end of the stroke.

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