Mounted Ball Bearings

SKF (Lansdale, PA) launched mounted ball bearing units with industry-standard inch series cast iron housings in several designs, inch or metric insert bearings, and several shaft-locking methods. The mounted bearing units are suited for light- and medium-duty industrial applications, including conveyor systems, fans and air-handling equipment, and similar machinery. Four cast iron housing types are available: pillow block units, 4-bolt square flange units, 2-bolt oval flange units, and tapped base units. The housings in an assortment of bore sizes are supplied pre-lubricated and with grease fittings for re-lubrication. Set screw, eccentric, or concentric shaft-locking mechanisms can be specified. The outside diameter of the bearing and the inside diameter of the housing have been sphered, allowing the bearing to swivel within the housing, and compensate for any errors in initial alignment during installation.

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Workholding Systems

RÖHM Products of America (Suwanee, GA) offers the Power-Grip Zero Point Clamping System, and RZM and RKE vises. The clamping system delivers both palletizing and clamping capabilities with one device and in single setups. The modular palletizing system is customizable, and workpieces can be positioned and clamped on the pallet outside the machine tool while it continues to work. The RZM Centric Vise features clamping jaws positioned relatively high, and a horizontal spindle situated at the top of the vise and closer to the jaws. The jaws are shorter and complement the vise’s overall height of 7.7" to reduce interference. The RKE NC-Compact Vise clamping system optimizes CNC machining centers. Featuring a solid steel body with its contact surfaces and guides hardened and ground on all sides, the vise offers chip discharge with fewer interfering contours. Protective caps and dirt protectors prevent chips from penetrating the inside of the vise body.

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Gearboxes

EXSYS Tool (San Antonio, FL) offers EPPINGER HT-type hypoid gearboxes with Monobloc housings. A flexible flange and coupling system enables the gearboxes to be connected to servomotors. With solid steel alloy and hollow shafts for shrink disc connection, users can install the gearboxes in various positions with a choice of output side. The gearboxes are available in four sizes in the ratio range from i = 5:1 to i = 15:1. Heavy duty bevel gears provide high transmission precision and reduced load on bearings. Screw holes in the housing edges enable a stable connection of the gearbox for various installation positions. Steel alloy shafts with super-finished bearing seats serve as the basis for taper roller bearings, while positioning at the setting of the bearings is done through ground steel shims and splinting of the inner rings.

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Safety Couplings

R+W America (Carol Stream, IL) introduced two STN series safety couplings with conical clamping hubs for overload protection. The two sizes (2 and 5) cover disengagement torques ranging from 200 to 5,000 Nm, and shaft diameters from 45 to 80 mm (1.750 to 3.125"). Featuring a ball-detent safety element system, the driving and driven ends separate within milliseconds of a torque overload, releasing the motor inertia from the driveline. The driveline is free to coast to a stop after disengagement, and re-engagement requires that a force be applied to the back sides of the plunger modules, either with a mallet or pry bar. Disengagement torque values are adjustable in the field, and multiple ranges are available depending on the module configuration. The couplings are designed with an output flange that can connect to a pulley or sprocket. Shaft-to-shaft connection methods are also available with disc, elastomer, bellows, or gear coupling designs.

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Voice Coil Actuator

The NCC08-75-3000-3X non-commutated DC linear actuator (direct drive voice coil actuator) from H2W Technologies (Santa Clarita, CA) generates a continuous force of 300 pounds (1330 N) and a peak force of 900 pounds (4000 N) at a duty cycle of 10%. A moving mass of just under 8 lbs. (3.6 kg) allows for maximum theoretical continuous acceleration of nearly 38 Gs. The actuator has a stroke of 0.8" (20 mm) and a motor constant of 17.6 lbs/sqrt(watt). The motor requires 4 amps of continuous current and 12 amps of peak current in order to generate the specified forces. The actuator has a diameter of 7.47" (190 mm) and a retracted length of 8.15" (207 mm). The moving coil design ensures a hysteresis-free movement, as the bobbin is constructed of aluminum, while the non-commutated coil allows for ripple-free motion and no cogging. It was designed with a thru-hole in the magnet and coil assemblies for integrating a shaft and bearing system through the center of the motor. Alternatively, the actuator can be used in applications where a thru-hole would be necessary.

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Travel System

Dynatect (New Berlin, WI) introduced the Gortrac® Articulated Roller Support (ARS) Long Travel System, a cable carrier solution. The system is intended for applications up to 300 feet, and eliminates wear and tow force spikes from alignment or failure of guide troughs, glide shoes, and push plates. The articulating roller supports are mechanically actuated by the curve of the cable carrier as it passes through the supports. These supports allow passage of the cable carrier as it travels, and in turn provide support throughout the travel of the system. The system supports high-load, high-acceleration, and high-speed (greater than 5 feet/second) applications. Installation accommodates many styles of plastic cable carrier.

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Thumb Screws

JW Winco, A Ganter Company (New Berlin, WI), offers GN 653.2 steel and stainless steel flat knurled thumb screws with recessed stud for loss protection. When using, instead of a tapped and bored hole, it is necessary to provide tapped bores with a thread on each of the two elements to be assembled. Additionally, a clearance bore on one or both sides is required. The steel thumb screw body with a black oxide finish has tensile strength of class 5 and the visible face is fine turned. The stainless steel version is made of 303 stainless steel and comes with a matte, shot-blasted finish.

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Servo Drive

Elmo Motion Control (Nashua, NH) has doubled the power of its Gold Twitter servo drive. With a weight of 33 grams and continuous currents of 160° (80V) and 140° (100V), the Double Gold Twitter drive delivers more than 10,000W of qualitative power for applications such as large robotic vehicles, antennas and tracking systems, and high-power machine tooling. The drive features Fast and Soft Power Switching Technology (FASST) with negligible electromagnetic interference (EMI). It can be placed on a moving load, on the motor, or inside the motor, reducing cables and eliminating electrical cabinets.

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Bushings

ON-SIZE™ bushings from Carr Lane Mfg. (Wharton, NJ) are suited for fixtures used at temperatures up to 750 °F (400 °C), as in autoclave curing. The precision bushings are used with bullet-nose dowels to align two pieces of a fixture. Made of Invar — a 36% nickel-iron alloy with a low coefficient of thermal expansion — the bushings are suited for aerospace and other applications where minimum thermal expansion and high dimensional stability are required. Available with or without a head, the bushings come in four sizes in inch or metric configurations.

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Ring Drive System

Nexen Group (Vadnais Heights, MN) offers the CRD 250B Compact Ring Drive system that includes a built-in, zero backlash locking/brake design with a brake life of 1 million cycles. The drive is suited for applications including cutting systems, automated welding, medical packaging, robotics, and semiconductors. The brake is spring-engaged and pneumatically released so it will default to lock in a power failure or emergency situation. Other features include radial slots for cable/line routing and pneumatic bard fitting installed, holding torque of 800 Nm, maximum release pressure of 60 psi, full sealed IP65-rated housing, and a precision-grade bearing and drive mechanism in a sealed housing. Freely programmable, the three drive design configurations allow the system to be optimized for high speed (up to 225 RPM), high torque, or both.

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Wheel Drive Assemblies

Allied Motion Technologies (Amherst, NY) introduced WheelMax™ Steering Series wheel drive assemblies that are fully integrated, electrically powered traction wheels with onboard steering systems for electric vehicles. The drives combine a traction wheel with tire, epicyclic gearbox, steering gear, and bearing system, and two PMDC brush motors — one for traction and one for steering power. Applications include AGVs, autonomous robotic material handlers, pushers and tuggers, powered utility carts, and hospital patient handlers. The drives handle loads up to 227 kg (500 lb.) and provide 14 Nm (120 lb-in) continuous torque at speeds of up to 5 km/hr (3 mph). The traction motor is equipped standard with a holding brake and an incremental encoder. Options include models compatible with 48 VDC power source instead of 24 VDC, brushless motor (with/without integrated drive electronics) for traction and/or steering power, flexible wiring for high cycle rotation, and manual-release holding brake.

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Linear Actuator

Kinitics Automation (Richmond, BC, Canada) announced the KLA05, a high-force, short-throw linear actuator. The shape memory alloy-based actuator uses proprietary Bundled Wire technology to deliver high force and actuation speed in a small package without the use of motors. It requires only electrical power to operate. The actuator provides forces up to 650 N (146 lbf) and strokes up to 6.7 mm (0.264"), and can be configured to supply a pushing or pulling force. The actuator offers positional accuracy of ±5um, has only one moving part and no backlash, and is available with accessories including rod-end attachments, a range of mounting brackets, and an adjustable home position switch.

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Displacement Sensors

Hoffmann + Krippner (Woodstock, GA) announced inelta LVDT linear displacement sensors that range from standard and miniature displacement sensors, to sensors with integrated signal processing and external thread for easy installation. The IZAL Series miniature sensors are suited for medical, industrial, testing, agricultural, and military applications. The contactless, wear-free sensors for displacement and position detection achieve a linearity tolerance of ±0.5% (optionally 0.25%), and are designed for measuring ranges of 2, 5, and 10 mm.

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Coupling

Guardian Couplings (Michigan City, IN) launched the K45 Series curved jaw flange (JF) shaft-to-shaft coupling with a bolt-on disc for use with brake calipers. The torsionally flexible coupling is designed for industrial applications including various types of cranes, hoists, and winches, as well as conveyors, reclaimers, and draglines. Five models are available with bore sizes from 0.87" to 4.92" diameter, and braking torque ratings from 8,310 in-lbs. to 63,720 in-lbs. The coupling’s brake disc and flexible spider element can be replaced during assembly. The brake disc must be mounted to the shaft end with the largest mass moment of inertia.

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Self-Lubricating Chains

Lube-free Lambda® Chain from U.S. Tsubaki Power Transmission (Wheeling, IL) features NSF-H1 high-temperature, food-grade lubricant impregnated into the bushings to improve chain performance and extend wear life. Applications include food and beverage conveying, packaging, hard-to-reach drive and conveyor systems, and operations where lubrication is not possible. The chain includes the NSF-H1 bushings as well as NSF-H3 food-grade rust preventative to withstand moisture in hot environments. The chains are available in standard box and reel sizes as well as cut-to-length strands for both ANSI and British Standard drive and attachment chains.

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Leadscrew Prototyping

Haydon Kerk, a business unit of AMETEK Advanced Motion Solutions (Waterbury, CT), offers 3DP, a 3D-printed leadscrew-nut insert prototype service for machine builders to verify linear motion design iterations. Development engineers and original equipment manufacturers who are testing new machine builds with leadscrew-driven axes can use the prototypes, which satisfy anticipated thrust loads, linear speeds, and required resolution. The leadscrew-nut inserts have a threaded interior (with a high-efficiency thread form) and a hex-shaped exterior to embed into flanged nut bodies or into more complex 3D-printed prototype assemblies. In addition to the hex shape, which radially locks the insert into the nut body or assembly, each insert also includes a ring groove that (with adhesive) axially locks it into place. The nuts are made of advanced materials that are engineered for production-part performance.

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Linear Slide Guides

NB Corporation of America (Hanover Park, IL) introduced the SEBS series of linear slide guides that features all-stainless construction for high-temperature applications. Retained-ball (whose elements allow for easier handling since the guide block may be removed from the rail without ball loss) or non-retained-ball lines are available in sizes from 2 mm. Friction-free travel ranges from 104-mm to 1000-mm rail lengths.

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Servo Drive System

The AMP8000 distributed servo drive system from Beckhoff Automation (Savage, MN) integrates a servo drive directly into a servomotor, and features a compact design. By relocating the power electronics directly into the machine, a control cabinet only needs to house a single coupling module in order to supply power to multiple servo drives with a single cable via the distribution module. Via EtherCAT P technology that provides EtherCAT signals and power over one cable, a coupling module can control up to five distributed servo drives via an IP 67-protected distribution module. The system is available in flange sizes F4 and F5. Various models are available with power ratings from 0.61 to 1.23 kW and standstill torque ratings from 2.00 to 4.8 Nm (F4), or power ratings from 1.02 to 1.78 kW and standstill torque ratings from 4.10 to 9.7 Nm (F5).

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Clutch Brakes

Force Control Industries (Fairfield, OH) offers Posidyne clutch brakes with oil shear technology that allows rapid and precise stopping, starting, speed change, and positioning without adjustment or maintenance. Available in piggyback designs, they feature pads cast into the main housings that mount an adjustable motor base, allowing the motor to sit atop the clutch brake. Other components include a gear belt drive from the motor to the input shaft, and an enclosed belt drive guard. The clutch brakes are well suited for applications with frequent start/stop cycles, and high cycle rates (up to 300 cycles per minute). A totally enclosed design is resistant to dust, chips, chemicals, coolants, caustic washdown, weather, and more. They feature a multiple- disc design that produces high torque from a small package. Recirculating the fluid dissipates the heat of engagement. The clutch brakes can be actuated by air or hydraulic pressure for use in a plant or in outside, remote applications. They are inherently explosion-proof with the addition of an explosion-proof actuation valve, or by locating the valve in an explosion-proof cabinet. Multiple sizes are available from ½ to 350 HP with cooling options, control logic, and mounting arrangements.

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Positioning Stage

Optimal Engineering Systems (Van Nuys, CA) offers the AQ110 Series of low-profile, motorized, single-axis positioning stages. The four cross-roller linear stages have travel lengths of 15 mm (0.590"), 30 mm (1.181"), 50 mm (1.968"), and 75 mm (2.952"). Open-loop repeatability of all stages is 0.5μ using a 10-microstepsper-step motor driver, or just 0.25μ using a 20-microsteps-per-step motor driver. Precision-ground lead screws with 2μ of backlash and cross-roller linear travel guides provide repeatability of 5μ and positional accuracy of 10μ. Each table has a pattern of 16 threaded mounting holes for the addition of custom tooling, and the base has drilled and countersunk holes for integration into new and existing applications. Options include servomotors, encoders, limit switches, and fully compatible multi-axis motion controllers.

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Incremental Encoders

Kubler (Charlotte, NC) introduced the Sendix 5000 and 5020 incremental encoders that integrate interlocked bearings, strengthened outer bearings, and large bearing size relative to the size of the encoder. The solid die-cast housing, with IP67 protection rating, stays sealed even when subjected to harsh environmental conditions. Features include temperature range from -40 °C to +85 °C, high shaft load capacity of 100 N (radial) and 50 N (axial), maximum speed of 6,000 RPM, and magnetic field resistance. The encoders are available in shaft and hollow shaft versions, and are compatible with U.S. and European standards. They also support M23, M12, or MIL cable connections, as well as Push-Pull, RS422, or Open Collector interfaces.

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Piezoelectric Accelerometers

PCB Piezotronics (Depew, NY) released the 352A91 and 352A92 miniature piezoelectric accelerometers. They feature single-axis ICP® voltage output with measurement ranges of 5,000 g (model 352A91) and 20,000 g (model 352A92). Both have mass of less than 0.006 ounce (0.17 grams) and cover a frequency range of 1.2 to 10,000 Hz at 5%. The hermetically sealed titanium housing and flexible cable design enable the sensor to survive overload shock of 20,000 g peak under thermal load up to +325 °F (163 °C). They are suited for small-component testing, environmental stress screening, and impact testing of electronic board assemblies. Built-in ICP microelectronics provide a low-noise, low-impedance output signal for low transmission loss over long distances. Multiple signal conditioners are available to power the accelerometers; any ICP, current-limiting signal conditioner, or data acquisition system may be used.

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Brushless Servomotor Kit

The EC 60 Flat Frameless Brushless Servo Motor Kit from maxon motors usa (Fall River, MA) consists of a rotor and stator, with no bearings or motor shaft. With an outer diameter of 60 mm, the pancake servomotor kit is available in sizes from 70 Watts to 100 Watts. The EC (electronically commutated) frameless slotted motors feature low-voltage windings, high pole pair count, and are shipped as BLDC frameless motor kits. The inner rotor slotted motors feature high acceleration/ deceleration capabilities and low rotor inertia. The motors can be integrated into collaborative and mobile robots, exoskeletons, and embedded robotic applications.

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Linear Actuators

Thomson Industries (Wood Dale, IL) offers Electrak HD electromechanical linear actuators with loads of up to 16 kilonewtons (kN), or 3,600 pounds. They accomplish all operation and control functions with onboard electronics, reducing footprint. The actuators connect to a power supply and PLC or other control source to bring the benefits of onboard electronics to high-load applications. Minimum duty cycle is 25 percent among stroke lengths up to 500 mm. For 16-kN loads at those stroke lengths, speed options up to 5 mm/s (0.197"/sec) are available. Optional J1939 CAN bus communication enables control and monitoring, while optional low-level switching, end-of-stroke indication output, choice of analog or digital feedback, and a customer control interface are also available. The actuators operate in temperatures from -40 to +85 °C (-40 to +185 °F), can withstand salt spray for 500 hours, and are CE, RoHS, and REACH (EU) compliant.

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Stepper Motor

Nanotec Electronic (Stoneham, MA) offers the SC2818 stepper motor with a flange size of 28 mm and torque of up to 0.22 Nm. The step angle of the 2-phase hybrid stepper motor is 1.8°. It has an integrated connector, allowing it to adapt cables for customized applications. A connection cable is included. The motor is available in three lengths, each with one or two shafts. The version with the B-shaft is optionally offered with an NOE1 encoder with up to 2,000 increments/revolution.

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Rolled-Steel Motors

The MTR2 series IronHorse® general-purpose, rolled-steel motors from AutomationDirect (Cumming, GA) are available in 1-phase and 3-phase versions. The single-phase motors feature 1,800 RPM, 115/230 VAC. They provide rigid-base or C-face mounting. The three-phase, 208- 230/460 VAC motors are available in 1,800 and 3,600 RPM models with TEFC (Totally Enclosed Fan Cooled) frames, cast aluminum end bells, and removable mounting bases. The motors meet RoHS and low voltage directives, and are CSA and CE approved. Available accessories include replacement/spare bases, junction boxes, fans, fan shrouds, and run/start capacitors for one-phase motors.

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Valve Seal Compound

C. Otto Gehrckens (Pinneberg, Germany) released Vi 840 FKM valve seal compound that conforms to the DIN EN 14141 standard. It features low-temperature flexibility of more than -40 °C, a TR-10 value of -40.1 °C, and is suitable for use at temperatures to -46 °C. The compound is suitable for use in gate valves, ballcocks, and other regulating valves. Made of black fluoro-rubber, it features Shore A hardness and tensile strength greater than 15 MPa.

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Pressure Switches

Sigma-Netics (Riverdale, NJ) offers the 745 and 785 Series diaphragm-operated ruggedized pressure switches designed for low-pressure, high-sensitivity applications including industrial OEM equipment, braking systems, compactors, compressors, and fuel systems. For maximum environmental protection, the 785 model is equipped with a 2- or 3-pin Deutsch connector. Compliant with IP67 standards, both models have a temperature range of -40 to +250 °F, and are designed for use in environments containing oil, fuel, water, dust, vibration, or shock. Custom configurations are available.

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Inertial Measurement Units

The Ellipse 2 Micro Series inertial measurement units (IMUs) from SBG Systems (Carrières-sur-Seine, France) combines MEMS-based gyroscopes, accelerometers, and magnetometers. The IMUs are fully calibrated in temperature to eliminate measurement errors such as sensor bias, gain, linearity, alignment, and g-sensitivity. The IMUs weigh 10 grams, provide 0.1° accurate attitude, and connect to external GNSS for navigation. For automotive applications, the inertial sensor comes with CAN protocol and connects to an odometer.

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Pressure Sensor

Mouser Electronics (Mansfield, TX) offers the ICM-20789 7-axis inertial and barometric pressure sensor from InvenSense, a TDK Group company. It combines a 3-axis gyroscope, 3-axis accelerometer, Digital Motion Processor™ (DMP), and an ultra-low-noise MEMS capacitive barometric pressure sensor in a 4 × 4-mm package.

The sensor integrates TDK’s 6-axis motion sensor to offer granular tracking of rotational and linear motion, and simplify the fusing of sensor signals. The gyroscope features a programmable, full-scale range (FSR) of ±250 degrees per second (dps) to ±2,000 dps, while the accelerometer FSR is programmable to ±2g through ±16g.

The MEMS capacitive pressure sensor achieves pressure noise of 0.4 Pa RMS and power consumption of 1.3 μA at 1 Hz. The MEMS capacitive pressure sensor is capable of measuring extremely small pressure differences of ±1 Pa, which enables the device to detect altitude changes of less than 5 cm. The sensor offers a full pressure operating range of 30 to 110 kPa, with a temperature coefficient of ±0.5 Pa per degree Celsius.

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Universal Compliance Compensator

ATI Industrial Automation (Apex, NC) offers the U1-050 Universal Compliance Compensator (UCC) that combines compliance behaviors including X-Y Lateral, X-Y-Z Rotation, and Z Compression. After compliance, the UCC returns to center repeatability by means of a pressurized internal reset piston. The compliance stiffness can also be tuned for each application by varying the pneumatic supply pressure, offering adaptability to a variety of applications including automated assembly, bin picking, loading and unloading machines, and robotic finishing. The UCC complies in many directions to overcome misalignment between the tool and the workpiece. It can be configured for either a PNP or NPN compliance sensor, and has an option for environmental protection. The UCC comes with a standard 50-mm ISO mounting pattern that, in many cases, eliminates the need for interface plates.

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Motorized Impeller

Orion Fans (Dallas, TX) introduced IP55-rated AC motorized impellers, and 24V and 48V DC motorized impellers. The AC motorized impellers provide high airflow for a range of harsh and demanding applications. The DC motorized impellers deliver a low-power solution with standard control and monitoring features. The motorized impeller models are available in 133-, 175-, 182-, 220- and 225-mm sizes. All AC motorized impellers ship standard with the required capacitor. All DC motorized impeller models include a PWM and tachometer function as standard features. Optional metal duct rings are also available for both AC and DC models. Featuring backward-curved plastic or all-metal blades, sealed dual ball bearings, and rugged die-cast aluminum frame, the motorized impellers provide static pressure values for restrictive environments such as electronic cabinets, enclosures, and ventilation systems.

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Acceleration Sensor

Bosch Sensortec (Stuttgart, Germany) released the BMA400 ultra-low-power acceleration sensor for wearables and Internet of Things (IoT) applications. Due to continuous measurement, the sensor’s measurement signal has defined cutoff frequencies, making it resistant to vibrations. With an ultra-low current step counter at 4 μA and power management features such as built-in activity recognition, the sensor can be used in wearable devices. The sensor wakes up automatically only when it detects motion and goes back into sleep mode when the motion recedes. It measures 2.0 x 2.0 x 0.95 mm³ and features an integrated plug-and-play step counter. It offers current consumption of 14 A at highest performance, continuous measurement, and a noise density of 220 g/√Hz; this falls to 1 A and below in the ultra-low-power self-wakeup mode.

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Walking Drive

The PICMAWalk walking drive from PI LP (Auburn, MA) combines PICMA® actuators with the stepping principle of the NEXLINE and NEXACT drives. Eight actuators arranged in the shape of a V provide high feed motion with a maximum of 60 N holding force, 50 N push/pull force, and a maximum of 15 mm/s velocity. The drive exhibits durability over a travel path of 30 km, even for high-demand continuous load in industrial applications such as alignment of large optics, detectors, and camera setups. The modular design offers the possibility of implementing individual, customized requirements. The drive provides nanometer precision positioning of loads up to 5 kg. The PICMA® actuators have all-ceramic insulation that protects the monolithic piezoceramic block against humidity or failure due to increased leakage current. There are no rotating parts or friction; the piezo actuators are therefore free of backlash, maintenance, and wear.

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