When you think of a ball screw assembly, you probably envision a screw shaft with a motor connected to one end. The motor turns the screw, and the ball nut travels along the length of the screw shaft. An alternative setup is to hold the screw … [Read More...]
FROM THE EDITORS
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Danielle Collins
What benefits do dovetail slides offer versus other linear bearing types? -
Lisa Eitel
What’s the difference between serial kinematics and parallel kinematics in multi-axis motion design? -
Miles Budimir
Hybrid stepper-lead screw actuators from Thomson feature built-in anti-rotational guidance -
Mike Santora
Linear, xy, rotary combination stages
What’s the difference between serial kinematics and parallel kinematics in multi-axis motion design?
Today’s positioning tables and stages include hardware and software that’s more customized than ever to satisfy specific output requirements. That’s made for motion designs that move accurately … [Read More...]
What benefits do dovetail slides offer versus other linear bearing types?
Dovetail slides are a type of plain linear bearing — along with boxway slides and plain bushings made of plastic, composite, or bronze — that rely on direct contact between sliding surfaces to support … [Read More...]
Compact Linear Induction Motor from H2W Technologies
H2W engineers have developed a compact Linear Induction Motor (LMAA-04-01) that can generate 10.6 lbs (47 N) of force at a 15 percent duty cycle. Operating at 208 VAC 3-phase 60 Hz, the synchronous … [Read More...]
Hybrid stepper-lead screw actuators from Thomson feature built-in anti-rotational guidance
Thomson Industries has expanded its line of stepper motor linear actuators with models featuring built-in anti-rotational guidance. The new motorized lead screw actuator (MLA) product saves designers … [Read More...]
THK to unveil new low inertia ballscrew-spline BNS-V during IMTS
At this year’s IMTS in Chicago (September 10 to 15) visitors can see in person THK’s latest ballscrew-spline BNS-V. Featuring an exceptionally compact and lightweight structure, the low inertia BNS-V … [Read More...]
What are the benefits of a rotating ball nut (aka driven nut)?
When you think of a ball screw assembly, you probably envision a screw shaft with a motor connected to one end. The motor turns the screw, and the ball nut travels along the length of the screw shaft. … [Read More...]
Case-hardened tapped or threaded shafts, ready to ship
Made in the U.S.A., NB’s shafts are never annealed, so outer diameters are ultra precise — tolerances are always reliable. Tapped shafts can be ordered with one or both ends tapped, in either … [Read More...]
New Sealed Electronic Actuator Simplifies Upgrade from Mechanical Actuation
Southco, Inc., a global leader in engineered access solutions has added to its line of electronic actuators with a sealed version that simplifies the upgrade from mechanical to electronic actuation. … [Read More...]
Timken acquiring linear-motion supplier Rollon
The Timken Company, a world leader in engineered bearings and power transmission products, has reached an agreement with pan-European firm Chequers Capital and IGI Private Equity to acquire Rollon … [Read More...]
What’s the difference between dynamic load capacity and static load capacity?
Rolling element linear bearings, such as round shafts and bushings, profiled rail guides, crossed roller slides, and even ball screws, have two load capacity specifications — dynamic load capacity and … [Read More...]
LINAK linear actuators in medical sit-to-stand lifts facilitate rehabilitation
By 2050 there will be two billion people older than 60, according to the WHO … and 2035 will see a 12.9 million shortage of healthcare professionals. Fortunately, some new linear-motion technologies … [Read More...]
When should you use a ball spline?
A ball spline is a type of rolling bearing linear guide, similar to a round shaft and bushing assembly, but with a critical distinction in its operation. The shaft of a ball spline is much like a … [Read More...]
Voice coil motor features internal shaft and bearing, high force-to-size ratio
Moticont’s new GVCM-051-089-05S06 linear voice coil motor features high speed, high acceleration/deceleration, zero backlash, high accuracy, high repeatability, and an internal shaft and … [Read More...]
Shape-memory alloys linear actuators: A new option for positioning
Now, one new actuator uses bundles of SMA wire made of specialty nickel-titanium alloy for reliable linear motion. Dean Pick, P.Eng. • President | Kinitics Automation Shape-memory alloys (SMAs) … [Read More...]
When should you lubricate a lead screw?
It’s expected that a ball screw, with metal-on-metal rolling contact between the balls and the raceways, will require periodic lubrication with either grease or oil. One of the advantages that lead … [Read More...]
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