Motion Control MARKETPLACE

MOTION INNOVATIONS

Precision ball screws

Rolled to a ±0.001 in/ft accuracy, these ball screws serve as an alternative to ground thread screws where tight, repeatable accuracy is required. Factory-fitted, pre-loaded ball nuts provide a backlash-free system for long life and high system stiffness at low running torque. Diameter sizes range from 0.375- thru 4.00-in. and 16mm thru 63mm, with lengths up to 40 ft. Lead accuracy is ±0.004 in/ft. Nook Industries Inc, 4950 East 49th St, Cleveland, OH 44125-1016. 216-271-7900. http://www.nookindustries.com
Circle 422.

Hybrid stepping motor

The VEXTA brand *Step is a stepping motor system with built-in sensors to detect and correct for missing steps, providing performance on par with servo motors. Having the feedback device built into the windings also eliminates the need for encoders or resolvers, reducing the motor's size. Basic models are offered with round shafts in 42, 60 and 85 frame sizes, in either AC or 24 VDC. Oriental Motor USA Co, 2510 W 237th St, Suite 102, Torrance, CA 90505. 800-406 -7484. http://www.orientalmotor.com

Circle 423.

Bearings on T-slot structures

UniBearings were created through a need to remove or install bearings quickly on an existing T-slotted aluminum structure without need for disassembly of the frame. The modular units are offered in metric and fractional sizes to compliment the company's line of extruded aluminum guiderails. Applications would include use in simple pick and place systems, or larger material handling transfer systems. 80/20 Inc, 1701 South 400 East, Columbia City, IN 46725-8753. 877-248-8020. http://www.8020.net Circle 424.

Zero backlash HD gearheads

The PSA-8 and PSA-10 compact harmonic drive gearheads provide reliable positioning, even in harsh environments. They can be supplied with low out-gassing or non-lithium grease for cleanroom or semiconductor manufacturing applications. Designed to handle high axial and overhung loads, standard ratios for the PSA-8 are 80:1 and 100:1, and 60:1 and 80:1 for the PSA-10. Harmonic Drive Technologies, 247 Lynnfield St, Peabody, MA 01960. 978-532-1800. http://www.harmonic-drive.com Circle 421 .

Micro linear actuator

Based on the smoovy 5mm gearmotor, the model APH59001 linear actuator permits precision adjustment of the unit's speed from a stepping mode up to 12 m/h. The bi-directional actuator is standard-equipped with ball bearings and a flexprint connector. Maximum travel is 12mm, at a maximum speed of 20 mm/min and a nominal force of 12N. A Hall sensor module also is available for this device. RMB Miniature Bearings Inc, 29 Executive Parkway, Ringwood, NJ 07456. 888-4smoovy. http://www.smoovy.com Circle 420.