Continued developments in manufacturing and materials have improved ball screw performance, with the most recent generation of ball screws having greater load densities than ever before, leading to higher load capacities. High-load ball screws are being integrated into electromechanical linear actuator systems for use in applications with higher loads and more demanding environmental conditions. In […]
Motion system applications: Better ballscrews, more applications
Ballscrews suit applications needing light, smooth motion, applications requiring precise positioning, and when heavy loads must be moved. Examples include machine tools, assembly devices, X-Y motion and robotics. Factors such as lead accuracy, axial play and preload, and life-to-load relationship are most commonly used to classify ballscrews. Lead accuracy is the degree to which the shaft’s […]
Bosch Rexroth launches new microsite for resource kits
In an effort to make life even easier for time-challenged engineers, Bosch Rexroth has launched a microsite — movewithrexroth.com — for its latest factory automation products and the associated Resource Kits. This website features easy navigation through ten of Rexroth’s newest products in the areas of Electric Drives and Controls, Linear Motion and Mechatronics, Plastic Chain […]
The good old days…they were terrible!
That was the mantra of my Technology and Society professor in college. And in many cases, I have to agree with him. While we like to romanticize the “good old days,” when things were simpler and more straightforward, how many of us would really want to go back and work in the era of slide rules […]
Profiled rail + rack & pinion = integrated solution
Profiled linear guides are typically used in conjunction with a drive system, such as a belt or ball screw, to provide rigid, accurate motion. When the specification calls for extremely long travel and high thrust force, the drive mechanism of choice is commonly a rack & pinion system. Fortunately for design engineers and machine builders, several […]
IMS-A integrated linear measuring system from Rexroth: Absolute, inductive and precise
Whether in machining operations, 3D printing or electronic handling, ever-greater accuracy and availability are essential. The new Rexroth IMS-A linear measuring system — integrated in linear guides — is helping do just that. It detects the absolute position of the axis to ±4 micrometers (µm). What’s more, the measuring system is immune to contamination, vibrations, shocks […]
Recap of top linear-motion technologies at MD&M West
Last week, a large contingent of the Design World staff got to go to MD&M West 2016 colocated with ATX in Anaheim, California. Hot topics at the show included the Internet of Things (IoT), smart components, plummeting robot prices, and increased automation even down to assembly tasks — not to mention changes in the medical industry itself. […]
Ball rail systems: twice the service life and high travel accuracy
The patented entry zone of the new BSHP ball runner blocks from Rexroth improves travel accuracy and work piece quality while greatly increasing load capacities and service life. These runner blocks are available in most sizes, versions, and accuracy classes. BSHP ball runner blocks are 100% interchangeable into existing profiled rail applications using the same […]
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 […]
How to reduce energy use of conveyor systems
Conveyors make up a significant part of most assembly and automation systems, not only in size, but also in terms of energy consumption. Think about it – they often run continuously and operate with motors, gearboxes, and pneumatic cylinders, all of which can be energy hogs. But there are ways to reduce the amount of energy […]
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