Products

DC Motors

AMETEK Technical & Industrial Products (Harleysville, PA) offers the Pittman® Series 8540 30-mm brush-commutated DC motors that integrate bonded neodymium magnets and 7-slot straight armature to minimize cogging. The motors feature a diamond-turned commutator and copper-graphite brushes for high current capacity. The motors are 1.181" in diameter and are available in three standard lengths of 2.080, 2.552, and 3.025". They achieve continuous torque to 9.3 oz-in and continuous power to 43W, depending on model. They also feature peak torque up to 78.7 oz-in and speeds to 6440 rpm at continuous torque for standard motors at rated voltages.

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Rotary Encoders

Heidenhain Corp. (Schaumburg, IL) offers the 1000 Series rotary encoders with IP 64 protection and absolute position-value formation in a 35-mm-diameter housing size. The encoders are designed as single-encoder measurement feedback systems in safety oriented applications. They provide two independently formed position values via serial EnDat interface. The EnDat 2.2 version with serial data transfer offers a single-turn resolution of 23 bits, and a multi-turn resolution of 12 bits. Supply voltage range is 3.6 to 14V.

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MEMS Inclinometer

ASM Sensors (Elmhurst, IL) has introduced the PTAM20 Series POSITILT® MEMS inclinometer available in single- and dual-axis versions. It is available in a compact, flat housing and features a measurement range for the single-axis version of ±15° to ±180° in increments of 15°. For the dual-axis version, measurement range is available from ±15° to ±60° in increments of 15°. The device measures ¼" high and less than 2" in diameter, and features an enclosure rated IP60. Analog output types of 0.5-4.5V, 0.5-10V, and 4-20 mA are available.

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DC Gearmotor

Midwest Motion Products (Watertown, MN) has released the Model MMP-D22-376H-24V GP52-195 BR-005 DC gearmotor with integral brake. Accepting any 24V DC source, including battery power, the encoder-compatible gearmotor/brake measures 2.25" in diameter and 9" in length. It has a keyed output shaft of 12 mm diameter by 25 mm long. Mounting is accomplished with four facemount M5 threaded holes, equally spaced on a 40-mm-diameter B.C. Output of the reversible gearmotor is rated for 215 in/lbs of continuous torque at 10 RPM, and 443 in/lbs peak.

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Servomotor Brakes

Nexen (Vadnais Heights, MN) has introduced the Eclipse line of servomotor brakes designed to mount to servomotors up to 20 horsepower. The spring-engaged brakes are equipped with a split-hub, zero-backlash clamp collar for attachment to the servomotor shaft. The flange-mounted brakes can be used with standard servomotors for integrated brake motor modular functionality. They come in a variety of input and output flange/shaft combinations.

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Linear Stages

Aerotech (Pittsburgh, PA) has introduced the PRO Series of side-sealed, hard-cover, ball-screw-driven linear stages available in 68 standard models with travels from 50 to 1500 mm. A variety of travels, widths, speeds, and load capabilities is available. The hard-cover design provides protection from debris, and the side seals keep dirt and particulates out of the stage and protect the bearing surfaces from contamination. The tabletop can be outfitted with an optional brush assembly to remove particles collected on the hard cover.

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Mechanically Commutated Drive

Maxon Motor (Fall River, MA) offers the RE 50 mechanically commutated drive that features an ironless rotor for detent-free running, and a combination of a two-pole neodymium permanent magnet with winding technology for high torque and acceleration. The drive measures 50 × 108 mm and is available with four different windings. It reaches a nominal torque of up to 0.38 Nm, a nominal speed of 2800 to 5700 rpm, and efficiency of more than 90%. Low nominal voltage of 24.70 VDC makes the drive suitable for battery operated applications such as electric vehicles, transport equipment, mobile systems, and robots.

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