In linear motion applications, ball screws are widely recognized for their ability to provide high thrust forces, while linear motors are gaining market share in high-speed applications, and belt drives continue to maintain their reputation as the … [Read More...]
FROM THE EDITORS
Dunkermotoren launches compact linear motor with double peak force
With the SA/SC 38 series, Dunkermotoren presents a new modular concept for tubular linear direct drives. The highly dynamic three-phase linear motors deliver up to 3,690 N and accelerate at over 200 … [Read More...]
Official opening of SERAPID Group subsidiary SERAPID Singapore Pty. Ltd.
As part of its international growth strategy, SERAPID Group (a leading supplier of lifts, quick-die-change, and horizontal transfer systems) has opened a new regional office in Singapore. Mr. … [Read More...]
Why are planetary gearboxes preferred for servo applications?
In a servo application — one in which a feedback device is used to control torque, position, or speed of a linear or rotary system — the ratio of the load inertia to the motor inertia is a critical … [Read More...]
Rotary ball splines ensure sub-millimeter accuracy
The NB rotary ball spline has a cylindrical nut that rolls on the ball spline shaft. Rotary ball splines can be used for both rotational motion and linear motion, providing sub-millimeter accuracy … [Read More...]
How to size a rack and pinion drive
In linear motion applications, ball screws are widely recognized for their ability to provide high thrust forces, while linear motors are gaining market share in high-speed applications, and belt … [Read More...]
What are walking piezo motors?
Piezo motors that produce linear motion include linear ultrasonic piezo motors, linear stepper piezo motors, and piezo inertia motors. Although their construction and principles of operation are … [Read More...]
What are some considerations for linear actuators in contaminated environments?
Reliable motion is often difficult to obtain when the operating environment is heavily contaminated with debris, or contains extreme conditions such as a wide temperature range or other environmental … [Read More...]
Where are glass scale linear encoders used?
Linear encoders are generally classified by their scanning technology — optical or magnetic. Magnetic encoders use a metal scale (often referred to as a "tape"), while optical encoders use a scale … [Read More...]
The top 5 articles on Linear Motion Tips for 2018
It's the end of another calendar year here at linearmotiontips.com and what better time than now to do a bit of reflection. It’s an opportunity to do a reckoning of sorts and find out what you, our … [Read More...]
Low-profile XY open-aperture stage features 1 micron resolution, 2 micron repeatability
OES (Optimal-Engineering Systems, Inc.) has added a new, high-precision open aperture stage to its expanding line of precision XY stages. The AU200-100x100 stage is a low profile stage measuring just … [Read More...]
Ball screw standards: What you need to know about DIN, ISO, and JIS
If you’re involved in ball screw sizing or selection, you’ve probably noticed that there are several different standards that govern various aspects of ball screw design, from lead accuracy and load … [Read More...]
Profiled rail accuracy: When accuracy class doesn’t tell the whole story
You’ve chosen a profiled rail and bearing for a high-precision application — machining, cutting, or metrology, for example. The bearing (aka carriage, or runner block) has good load capacity and … [Read More...]
Under development: Linear stroke-extending technology from Ascending Power
In a recent email exchange with London-based John Hammerbeck of Ascending Power, we learned more about a novel new linear-motion extension technology from the company. The actuator steps up a short … [Read More...]
What is sub-divisional error (SDE) in linear encoders?
To determine the position of a linear axis, an encoder read head travels along a scale and "reads" changes in light (for optical encoders) or magnetic field (for magnetic types). As the read head … [Read More...]
Thomson online product sizing and selection tool for linear-motion systems
Thomson Industries has enhanced its Linear MOTIONEERING product -sizing and selection tool for linear motion systems. The tool reduces time for component selection from hours to less than 15 minutes. … [Read More...]
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