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 screws have over ball screws is that they can often … [Read More...]
FROM THE EDITORS
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...]
Mechanical linear drives need no electronic controls for fine adjustment of travel distance
Amacoil-Uhing rolling ring linear drives offer a mechanical alternative to electronically controlled linear motion systems in automated machinery. The drives convert the rotary motion input from a … [Read More...]
Magnetic linear encoder solves issues with variable gap distance
New Balluff product delivers impressive 12 micrometer accuracy at 1.0 mm A new magnetic incremental linear encoder system with exceptional ride height provides a much needed solution for applications … [Read More...]
How do magnetic linear encoders differ from optical versions?
Encoder technology generally falls into three categories: optical, magnetic, and capacitive, with optical and magnetic encoders making up the bulk of the industrial automation encoder market. Not very … [Read More...]
Gilman Precision launches new website
Customized linear and rotary motion systems manufacturer Gilman Precision has unveiled its revitalized website. The concept for the update arose from the positive feedback the company received … [Read More...]
Three-axis gimbal mount from OES features high resolution and stability
The new AU300-AER three-axis gimbal mount from OES (Optimal Engineering Systems, Inc.) features full 360˚ rotation of each axis. This three-axis gimbal mount handles loads to 10 kg (22.5 lb) and has a … [Read More...]
SKF Ecomag linear actuators enable safe, precise movement and positioning
SKF Ecomag linear actuators from SKF Motion Technologies, Inc. enable safe and precise power-driven movement and positioning of procedure tables and chairs in medical settings including hospitals, … [Read More...]
When is resolution important for linear systems?
Accuracy and repeatability are standard specifications that describe how a linear motion system behaves along its travel and how closely it reaches the intended position. Resolution, on the other … [Read More...]
High-torque rotary voice coil actuators from H2W
H2W Technologies has developed several high-torque rotary voice coil actuators, otherwise known as a limited angle torque motors or LATs. The model TWR-015-346-2RC was designed to allow for a low … [Read More...]
Differential windlass drives: How new designs work for linear motion
Rise Robotics now sells the Rise Cylinder — an electromechanical linear actuator that (according to the company) delivers power density and reliability comparable to or exceeding those of linear … [Read More...]
Linear actuators: smarter, more powerful
Electromechanical actuators continue to evolve with more integration as well as more power, challenging some fluid power mainstays. Putting together a linear motion system has never been easier, … [Read More...]
Linear motion designs see wider adoption of linear direct drives
Direct drives are a motion-control technology projected to see high rates of adoption in coming years, according to market research by the ARC Advisory Group. That’s due in part to an array of … [Read More...]
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