Moment of inertia is an important parameter when sizing and selecting a linear system. But it’s critical to know which type of inertia—planar moment of inertia or mass moment of inertia—is given and how it affects the performance of the system. Planar moment of inertia Planar moment of inertia (also referred to as second moment of […]
Linear Actuator
Three easy ways to reduce maintenance costs for linear systems
If you’ve read many articles on this site, you probably recall that inadequate lubrication can cause bearing failure. But while lubrication is the most important maintenance factor in linear bearing life, there are other things that users can do to reduce maintenance costs and ensure they get the most life from a linear bearing, ball screw, or […]
What are the main types of linear actuators?
Updated August 2017 || Linear actuators come in myriad configurations to suit almost any application, environment or industry. They’re primarily categorized by their drive mechanism; then manufacturers use other features such as the type of guide and housing to further differentiate them. Below is an explanation of the most common linear actuator categories. Belt-driven and […]
Moog Animatics expands actuator line
Moog Animatics, a division of Moog Inc., has announced the release of three new high-performance models to its actuator product line. These fully integrated actuators bring SmartMotor™ capabilities (ease of use, compactness and speed to market) to today’s actuator applications. They are designed for precise motion, long life and minimal maintenance. Typical applications include material […]
Warner Linear debuts electric actuator video series
A series of informative Warner Linear electric actuator videos has been produced to clearly show proper installation steps, troubleshooting, and maintenance tips for various actuator models. Topics include limit switch adjustment, basic selection guidelines, and best practices for mounting. The short how-to videos can be viewed on the Warner Linear website at www.warnerlinear.com or on […]
New Thomson Electrak HD Linear Actuators
Thomson Industries, Inc., a leading manufacturer of mechanical motion control solutions, has developed an entirely new platform of electric linear actuators which enable design engineers to convert a wider range of hydraulic applications to electric and substantially improve application control. The new Electrak HD™ electric linear actuator offers a new level of electronic functionality with […]
Servo motor basics
Technically, the term “servo” refers to a function rather than a specific type of device. A servo system is one in which the system’s error (in positioning, speed, or torque) is corrected through feedback that compares the system’s actual performance with its commanded performance. A servo motor, then, is one that incorporates a feedback device […]
Linear actuators: Pneumatic or electric?
Updated May 2018 || Electrons or air molecules? That’s not a question you hear very often, but it’s one that engineers and designers wrestle with when developing a new machine or process. That’s because a wide range of linear actuators, especially rod-type versions, are available either electrically driven or pneumatically driven. The choice of which […]
Five things to consider in vertical applications
Mounting orientation is one of the core considerations when sizing and selecting a linear actuator. Depending on the type of linear guides used, some actuators can support higher downward or lift-off loads than side loads, or can handle pitch and yaw moments better than roll moments—all important factors when evaluating an actuator for vertical duty. […]
Parker announces North American production of high moment rodless linear actuator series
Now manufactured in the USA, the HMR attains greatly improved lead times and new customization options. Parker’s Electromechanical Automation Division, a leading supplier of motion control technology, is pleased to announce the domestic manufacturing for the complete line of High Moment Rodless (HMR) electromechanical linear actuators. “This move will serve to greatly improve product lead times […]
