Top Product

Roller screws

• long life

• suited to high loads, speeds

Converting rotary torque into linear motion, the PRS Series stand-alone roller screw component uses a planetary roller screw that provides more contact points than is possible on comparable-sized ball screws. The result is higher stiffness, higher load capacity, and 15 times the travel life of ball screws. Available in diameters from 3.5 to 150 mm, the device handles speeds up to 5000 rpm, with load ratings up to 779,000 lb-ft. and a standard lead accuracy of 23 µm/300mm. Stiffness and shock load resistance are high, noise is minimal, and preloaded nut options add zero backlash. Other features include a ground screw for high-precision applications, non-recirculating rollers, and a choice of three nut styles and three nut flange styles. Custom configurations may be created to fit system requirements. Exlar Corp, Chanhassen, MN.   www.rsleads.com/212df-102

Linear guide
The Monorail BZ 35 connects high-accuracy toothed gear segments to the company’s Monorail BM system, to create a unified linear guide and rack ready for fast installation with a pinion drive. Low friction and low stroke pulsation are achieved through optimized corner and bedding-down geometry. Four rows of ball bearings, two-point contact and o-shaped geometry add rigidity and high load-bearing capacity. Schneeberger Bedford, MA.   www.rsleads.com/212df-103

Anti-backlash nut
This nut eliminates the minimal backlash between the leadscrew and nut interface on the company’s size 17 linear actuators. Available for non-captive and captive designs, the spring preload design assures precision over millions of cycles. Broad ranges of preload requirements can be accommodated up to 15 lbs. The nuts are made from self-lubricating thermoplastic or glass-reinforced resin, depending on application. Haydon Switch & Instrument Inc Waterbury, CT.   www.rsleads.com/212df-104

Piezo translation stage
Unveiled as the world’s smallest high-speed translation stage with an integrated linear piezo motor drive, the M-661 provides a 20 mm travel range with 0.1 µm resolution. Package size is 25 x 20 x 8 mm, with the motor producing velocities of 200 mm/sec and accelerations of 150 m/sec². The PZT drive is self-locking when powered down, and generates no heat in steady state. A version for XY configurations is available. Polytec PI Inc, NanoAutomation Group, Auburn, MA.   www.rsleads.com/212df-105

Miniature ball screws
Built using internal ball-return technology, this series of miniature ball screws will be offered in 4 mm (with 1 mm lead), 6 mm and 8mm diameters. Nylon wipers will be standard to prevent the ingress of contamination. Both rolled and ground units will be available, as well as a range of precision classes — from ISO3 to ISO7 (0.012/300 mm to 0.050/300 mm). Thomson Industries Inc, Port Washington, NY.   www.rsleads.com/212df-106

In-cylinder sensor
The TDP-100 position sensor provides an alternative to non-contact feedback devices for hydraulic and pneumatic actuators. Combining virtually infinite resolution, wear-resistant hybrid-track technology and low cost, the sensor uses high-resistivity conductive plastic bonded to a precision wire-wound element, for an absolute analog output and 0.15% linearity with no additional electronics required. Transducers Direct, Cincinatti, OH.   www.rsleads.com/212df-107

Precision ball screws
According to this company, their proprietary PSF technology makes FineLine ball screws as accurate as ground ball screws but at a significant cost savings, even with custom machined ends. The manufacturing process also contributes to precise cylindricality and ball track roundness. Diameters range from 12 to 80 mm, in lengths up to 6 m. BS&A, a Danaher Motion Co, Amherst, NY.   www.rsleads.com/212df-108

Linear motor actuator
The Type RDM actuator is coreless and features a thrust rod for enhanced performance. A coreless motor virtually eliminates attractive forces, reduces low-speed ripple and allows for a compact design. With the motor coils encased in the moving carriage, there is no effect on the thrust, even when the shaft center is offset. This actuator has an extruded aluminum base that allows a long stroke. THK, Schaumburg, IL.   www.rsleads.com/212df-109

Capacitive prox sensors
These proximity sensors feature high electromagnetic compatibility, increased switching distances up to 25 mm, and a choice of designs for flush and non-flush installation. The CM 18 is packaged in an M18 cylinder, the CM 30 in an M30 round housing, and the CQ 35 in a 35 mm plastic cube. These sensors all have an IP 67 enclosure rating and are suited to harsh ambient conditions. SICK Inc, Minneapolis, MN.   www.rsleads.com/212df-110

Ultrasonic prox sensors
The Model SM607 Series of proximity sensors has fixed sensing windows as small as 0.125 in. within sensing ranges up to 2.5 in., with a deadband as short as 1.25 in. The devices combine piezoelectric transducer and microprocessor technology, for reliable detection of objects as small as 0.005 in., regardless of material, color or shape. Hyde Park Electronics Inc, Dayton, OH.   www.rsleads.com/212df-111

Double nuts
Designed for this company’s ground ball screw line, the UNILOCK double nut eliminates the need for spacers or connecting hardware required by conventional double nuts. UNILOCK uses two nuts directly preloaded against each other and then locked, using an integral bonding system. The nuts are available for ball screw diameters from 16 to 100 mm. Steinmeyer Inc, Bedford, MA.   www.rsleads.com/212df-112

Vertical lift stage
The high-precision ANT-4V lift stage features high 50 mm/sec speed, high 2 nm resolution, excellent in-position stability and high 200 nm accuracy. Its non-contact, non-cogging direct drive employs highly accurate direct position feedback. Unlike screw- or piezo-based stages, the ANT-4V requires no maintenance, even when operating in a 24/7 environment. Aerotech Inc, Pittsburgh, PA.   www.rsleads.com/212df-113

Recirculating and planetary roller screws
These roller screws can sustain static loads up to 1,000 tons and dynamic loads up to 200 tons, which is three times greater dynamic capacity than comparably-sized ball screws. The planetary versions feature threaded nuts, rollers and screw shafts, while the recirculating versions have fine-lead threads as small as 1 mm for high precision positioning. SKF Motion Technologies, Bethlehem, PA.   www.rsleads.com/212df-114

Incremental encoder
The 2-in. C120 Series encoder is offered for any incremental count from 1 to 8, 192 ppr. Electrical bandwidth up to 820 kHz and a firmware-generated marker pulse of 90 or 180 permits reliable feedback for speeds up to 10,000 rpm. Alignment of electrical position to mechanical position is achieved via set button or setline. Stegmann Inc, Dayton, OH.   www.rsleads.com/212df-115

PCB-mount solenoids
Primarily designed for use in battery-operated portable equipment and small line-powered devices such as gaming machines, point-of-sale devices, coin counters and centrifuges, the SC0424L (latching) and SC0424N (non-latching) are DC open-frame, pull-type solenoids. Solenoid coils are available for operation with 3, 6, 12 or 24V supplies. Bicron Electronics Co, Canaan, CT.   www.rsleads.com/212df-116

Pressure-sealed position sensors
The 75PC series of LVDT sensors are available in measurement ranges from ±0.050- to ±10.000-in., in AC or DC versions. Each unit features all-stainless-steel construction, is sealed against hostile, wet, dirty and outdoor environments, and is capable of operating in pressures up to 1000 psi or in liquids. Electrical hookup is through a 6-pin bayonet-type connector. Sentech Inc, North Hills, PA.   www.rsleads.com/212df-117

Linear motor
Designed for intricate automation applications, TT Micro linear motors offer fast acceleration, high speed and precision positioning without backlash or cogging. They develop 45.1N peak force, accelerate to 250 m/sec2, and attain velocities of 3- to 20-meters/sec. Position encoder, limit switches and heat sensor are all built in. Copley Controls Corp, Canton, MA.   www.rsleads.com/212df-700

Voice coil actuator
Suited to applications requiring a linear force with high acceleration, or high frequency actuation, this compact linear actuator eliminates the cost of mechanical conversion devices such as ball screws or gearboxes. A low-mass inner moving coil and an oil-impregnated sintered bronze bearing contributes to quick mechanical response times. Servo Magnetics, Canoga Park, CA.   www.rsleads.com/212df-701

Corrosion-resistant slides
EasyLinear slides are offered in electroless nickel-plated aluminum or all 303 stainless steel for applications in food, pharmaceutical, medical and other critical environmental applications. Available in diameters up to 1 in., the slides feature Teflon composite bearing in standard, high load, high wear and food grade ratings. Leidemaul Ltd, Rockford, IL.   www.rsleads.com/212df-702

Miniature linear encoder
The LIF400 Series of incremental exposed encoders are designed especially for the semiconductor industry and fiber stage manufacturers. With travel up to 1 meter, the LIF400 maintains a long wave accuracy grade of ±3 µm. Resolution ranges from 4 µm down to 10 nm, and its small size fits installations with limited space. Optical limit switches are included. Heidenhain Corp, Schaumburg, IL.   www.rsleads.com/212df-703

Rail bearing slides
The SIP Series product family features smooth, precise linear motion in three bore sizes (12, 16 and 20 mm). Standard internal shock pads eliminate metal-to-metal contact, reducing noise and end-of-travel impact forces. Recessed switch slots permit easy mounting of reed and solid-state switches. Mounting holes are mounted on the end and bottom of the slide body. PHD Inc, Fort Wayne, IN.   www.rsleads.com/212df-704

LVDT position sensors
The heavy-duty SQ 1250 sensors are recommended for installation in mill-type hostile environments. Totally encapsulated in an aluminum housing, these contactless position sensors withstand high shock and vibration levels, and meet the IEC IP-64 sealing standard against the intrusion of splashed water and other liquids. Units are magnetically and electrically double-shielded. Macro Sensors, Pennsauken, NJ.   www.rsleads.com/212df-705

Miniature displacement sensor
Delivering a 21.25-in. range and flexible mounting in a small package, the Series L position transducersare a low-cost alternative to rod-and-cylinder devices. Typical pplications include simulator actuator feedback, steel mill controls feedback, and medical device locating function. DirectConnect design eliminates backlash resulting from spring-loaded and clutched designs. SpaceAge Control, Palmdale, CA.   www.rsleads.com/212df-706

Low profile mono-rail
A data sheet has been released covering this company’s Mini-Plane Rail linear guide family, including the MR series that is size interchangeable with industry standard rolling element miniature monorails. A complete explanation of Mini-Rail features and benefits, as well as detailed application examples, is provided. Mini-Plane Rails uses FrelonGOLD and FrelonJ bearing materials. Pacific Bearing Co, Rockford, IL.   www.rsleads.com/212df-707

Limited-space position sensor
The short sensing element and overlapping electronics module allows the Temposonics L Series LD4 to be mounted inside an actuator cylinder endcap. Installation and maintenance can be handled without disassembly of the entire cylinder. The sensor is available with voltage, current, start/stop and pulse-width modulated (PWM) outputs. MTS Systems Corp, Sensors Div, Cary, NC.   www.rsleads.com/212df-708

Rack & pinion system
An alternative to ground ball screws and linear motors, especially in lengths over 1 m, this precision rack and pinion system offers maximum feed dynamics with short acceleration times. All surfaces are ground to tight tolerances, providing designers with flexible mounting options. Standard lengths of 167 to 500 mm are available. alpha gear drives inc, Elk Grove Village, IL.   www.rsleads.com/212df-709

Reed switch sensor
The PSB1 Series bi-stable position sensors with matching magnets are suited for us in a variety of applications requiring precise position sensing for safety. The magnetically biased contacts can be activated by compatible north- or south-pole magnets, providing precise position indication in security and interlock switches, lifts, elevators, stair lifts and materials handling equipment. Gentech International Ltd, Ayrshire, UK.   www.rsleads.com/212df-710

Rotary encoder
This Sine/Cosine rotary encoder provides a non-contacting full rotation absolute position input. There is no index pulse, no quadrature issues, and no need for homing at start-up. Resolution is to 20 bits and accuracy is to 16 bits. The device is immune to RFI/EMI, and power consumption is as low as 50 µW. Applications include robotics, consumer products, medical and aerospace. Netzer Precision Motion Sensors Ltd, Houston, TX.   www.rsleads.com/212df-711

Servo controlled encoders
These encoders offer very high accuracies of <0.1 micron over 100 mm, with a resolution to 0.05 micron. Ideal for use in automatic measuring systems, the devices can be combined with the company’s Orbit network system for a combination of up to 62 channels of I/O modules, servo drivers, sensors and encoders from a single control card. Solartron Metrology, West Sussex, UK.   www.rsleads.com/212df-712

Linear positioning stages
The TLC series of stages have travel ranges from 100 mm to 2 m, and feature accelerations to 10 G’s and velocities to 6 m/sec. Sub-micron resolution and repeatability up to 1 micron are standard. The lightweight, compact carriage, incorporating the company’s servomotor, encoder and bearings, can be easily adapted for XY configurations. ETEL Inc, Schaumburg, IL.   www.rsleads.com/212df-713