PBC Linear has recently released a low profile linear guide system, the Compact Series. This addition to the Mechantronics Enabled initiative is designed to provide smooth, accurate, and repeatable linear motion in tight spaces. Boasting a 23 mm standard height, and with the flexibility to be configured to adapt to the demands of a given […]
Planetary Screw Assemblies: New sizes with increased capacity range
Rexroth opens up new fields of applications with planetary screw assemblies with new sizes. The drive elements with screw diameters up to 75 mm and leads up to 20 mm achieve static load capacities up to 1,496 kN while featuring a compact design. They are ideal for use in medium sized and heavy-duty machinery such […]
The difference between inertia and momentum
The concepts of inertia and momentum are often confused — possibly due to the similarity of their definitions. Inertia is generally described as an object’s resistance to motion, with momentum being the tendency of an object to continue moving. Both have implications for linear motion applications, but while inertia is a fundamental sizing parameter, momentum […]
A selection guide for linear systems
Gone are the days when machine designers and builders had to choose between constructing their own linear system from scratch or settling for a limited range of pre-assembled systems that, in most cases, were an imperfect fit for their application. Manufacturers today offer systems based on a range of drive mechanisms—ball screws, belts, rack and pinions, linear motors, […]
Ball screw lubricant from Nook Industries
Nook Industries, a leading innovator of linear motion components and systems, offers E-900 ball screw lubricant for use on any of its ball screw products, such as ball screw assemblies, ActionJac ball screw jacks and ball splines. The E-900 lubrication provides a lasting film for wear protection and corrosion resistance. The lubrication system offers a wide […]
Linear motors explained
The use of linear motors in industries as diverse as packaging and semiconductor manufacturing is a testament to their suitability for a wide range of applications. In recent years, manufacturers have worked hard to remove the “mystique” that for so long surrounded these products and hindered their widespread usage, but linear motors still face several challenges […]
Standard ball screws now available from Nook Industries
Nook Industries, a leading innovator of linear motion components and systems, proudly offers a complete line of standard ball screw products. An upgrade from acme screws, ball screws provide advantages similar to those had by antifriction bearings over plain bushings. Ball screws serve a variety of applications, including machine tools, assembly devices and robots.Nook’s precision […]
Linear motion tips for food and beverage applications
It’s not hard to understand why applications in the food and beverage industry are especially challenging for linear motion systems. Food processing and packaging equipment must simultaneously meet high throughput requirements and withstand harsh environments, while safely handling and processing products which are at constant risk for spoilage or dangerous contamination caused by environmental factors or improper handling. Add to this […]
Compact Stages for Scanning and Indexing
The Velmex XSlide assembly is a compact positioning stage highly suitable for high performance incrementing and scanning of smaller loads. Its compact design makes it ideal for limited space applications. Constructed with hard-coat anodized aluminum dovetail ways and smooth motion PTFE bearings, XSlide assemblies deliver higher rigidity for longer life and more precise movement when […]
Don’t ignore these three things when mounting linear guides
Linear rail guides are designed for applications that call for precise motion with high load-bearing capability. But improper mounting can add unnecessary loads, reduce life, and undermine the inherent travel accuracy of the linear guide system. Understanding and following the three mounting specifications described below will help ensure your installation achieves the desired accuracy and doesn’t succumb […]