Rotating shaft guards
This company now provides close-coupled, spacer and line shaft guards to complement its flexible shaft couplings as a standard shaft connection product. A type MCG motor coupling guard is now offered as an economical addition for NEMA and IEC frame motors. Coupling types include elastomer, grid, disc, gear and fluid coupling types in close-coupled, spacer, floating shaft and dual-purpose configurations. Falk Corp, Milwaukee, WI. www.rsleads.com/304df-200

Rotary transmitters
This company’s rotary transmitters do not contain slip rings, brushes, wire loops and similar devices. The transmitters feature 4, 8 or 12 channels and can operate up to 40,000 rpm. Other features include resistance < 0.2 mW, noise < 25µV, very low inertia, signals up to 0.5 A/cell, 60 VAC/DC and long lifetime. Applications include measuring temperature/mechanical values on turbine and jet engines, propellers and motors. Magtrol, Buffalo, NY. www.rsleads.com/304df-204

Fiber-optic laser encoder
The RLE fiber optic laser encoder is an interferometer-based system designed to produce high resolution, linear position feedback signals with easy installation. The system has single- or dual-axis capability with lengths up to 1 m. A single laser source uses fiber-optic links to transport the laser beam to the axis measuring position. An optical beam-steerer reduces alignment to a simple bolt-down-and-dial-in process. Renishaw Inc, Hoffman Estates, IL. www.rsleads.com/304df-205

Actuators
The explosion-proof linear actuator is mounted on a single glove valve. The company has a full line of linear and rotary actuators with features that include digital positioning, explosion proof ratings, manual operation, stainless steel housing and high ambient temperature operation. A typical 2-in. stroke actuator in a valve application can control position to ±0.5% and fully open or close in 200 msec. Exlar Corp, Chanhassen, MN. www.rsleads.com/304df-206

Piezoelectric accelerometers
Models 378 and 378-HT piezoelectric accelerometers are designed for prolonged use in high shock, vibration, temperature, humidity and excessive oil environments. The high charge sensitivity of 1000 pC/g and mounted resonance of 10 kHz provides a dynamic range from 0.00001 to 500G. The model 378-HT operates in temperatures up to 500°F. Columbia Research Laboratories Inc, Woodlyn, PA. www.rsleads.com/304df-207

Programmable control relay
Featuring 25 different function blocks to handle 32-bit math processing, plus high-speed counter and encoder functions, the economical easy800 PCR permits networking of up to 8 relays. It can program in ANSI, IEC and Easy formats. Each relay module has an expandable I/O system and built-in network interface. Distances of up to 3200 ft can be achieved. Moeller Electric Corp, Franklin, MA. www.rsleads.com/304df-208

Servo drives
The PCE800 series of servo drives features 480 VAC operation and is compatible with European voltage requirements. The compact drives have a footprint 40% smaller than comparable drives and are small enough to fit into a 10-in. cabinet. Pacific Scientific, Rockford, IL. www.rsleads.com/304df-209

Harmonic drive gearing
The Quantum series harmonic drive gearing delivers 50% more torque than the company’s CSF series while maintaining zero-backlash, 1 arc-min positional accuracy and ± 5 arc-sec repeatability. The size 14 gearing component has a 50 mm OD and 28 mm length, rated torque of 89 in.-lb and maximum torque of 620 in.-lb. Gear ratios are 50, 80 and 100:1. HD Systems Inc, Hauppauge, NY. www.rsleads.com/304df-211

Gear reducer
Offering high ratio gear reduction in a compact design, the RV-E rotary vector gear reducer displays high torsional rigidity and overload torque capacity — at 500% of rated torque (ranging from 537 to 60,710 in.-lb). Peak torque is 2600 to 303,555 in.-lb with ratios starting at 31:1. Total lost motion from all sources, including backlash, spring rate and hysteresis, is limited to 1 arc min. Harmonic Drive Technologies, Peabody, MA. www.rsleads.com/304df-212

Linear motion system
This company’s linear motion system can be linked to a main rotary drive motor via a simple pulley system without requiring a separate motor or controller to provide automatically reciprocating linear motion. Additionally, the main drive motor need not be reversible because the system automatically reverses via purely mechanical means. The drive head enables variable linear pitch via a control lever. Amacoil Inc, Aston, PA. www.rsleads.com/304df-213

Adjustable frequency drives
The VLT Micro adjustable frequency drives are currently available with ½ to 5 hp for 230 VAC and 1 to 5 hp for 460 VAC applications. Built-in software eliminates additional hardware requirements, and a digital keypad/display module is located on the front panel. The drives provide DC performance from low-maintenance AC motors. Danfoss Drives, Loves Park, IL. www.rsleads.com/304df-214