Bell-Everman News

Solutions for a World of Motion

Welcome to Bell-Everman News, the best place to stay informed about our precision motion control technologies. Every week, we’ll post updates on our latest products, application developments, and events. We’ll also feature highlights from Mike Everman’s engineering blog. So visit us often, subscribe to our RSS feed or use the form at the bottom of the page to subscribe to our monthly email newsletter.

Wednesday, 19 October 2016 21:42

Video: New ServoBelt LoopTrack Linear Stage

Our latest ServoBelt linear stage features a new LoopTrack carriage design that allows the stage to span long travel distances in any orientation. This linear stage also allows multiple, independent carriages to share a chassis and bearing rails.    
Thursday, 11 August 2016 17:03

Collet Closer For Rotary Stages

The latest add-on for our ServoBelt and Direct Drive Theta rotary stages is an air-actuated collet closer that securely holds cylindrical goods for tasks such as laser marking, engraving and inspection. Watch this video to learn more.    
Precision rotary stages often work as part of inspection, metrology and laser marking systems. But what happens when the good to be inspected is a tiny cylindrical item? These applications need a collet closer or similar mechanism to hold the cylindrical item securely. Usually, though, there's no easy way to build the collet closer into a small through-hole stage. And face-mounted workpiece holders add cost, weight and bulk. In some cases, the addition of a heavy bolt-on workpiece holder may even require you to upsize the stage, which drives even more cost. As part of our ongoing effort to add…
Monday, 01 February 2016 14:19

ServoBelt Rotary Through Hole Differences

A large through hole is helpful when you have to pass utilities through the center of a rotary stage. But if you don't need the extra room for utilities, you can opt for a lower cost rotary stage with a standard-sized through hole. Watch this video to learn more.  
Thursday, 10 September 2015 00:00

New ServoBelt Rotary Stages Cost Up To 50% Less

ServoBelt Rotary stages are now available in a low-cost version that offers smaller through hole dimensions but otherwise keeps all the technical performance of our original ServoBelt Rotary stages. Standard Through Hole Sizes. Available with 16- and 25-mm through holes, the new stages address the broad range of rotary motion applications that don’t need to pass large bundles of utility connections through the center of the stage. For those applications that do require a large center opening, our original ServoBelt rotary models offer 50-, 100- and 200-mm through holes. Low Cost, High Performance. By shrinking the through hole, we were…
Thursday, 05 March 2015 19:29

How ServoBelt Linear Works

Thursday, 05 February 2015 15:34

New Sealed Linear Actuators For Lighter Loads

Our SLS sealed linear stages have just become more versatile with the introduction of a compact model intended for lighter loads. The SLS Light measures just 80 x 120-mm, or 60-mm less than our SLS Medium model. The Light version has maximum dynamic payloads of 15 kg for the direct drive linear motor variation and 30 kg for the ball screw version—versus 30 and 100 kg for the comparable SLS Medium models. Integrated Lip Seal. Both sizes of SLS sealed linear stages feature a proprietary linear lip seal design that integrates seamlessly with the stage’s anodized aluminum housing. Made from…
Wednesday, 04 February 2015 16:08

Simple Linear Stage Features New Drive Mechanism

If you find that direct drive or ballscrew-driven positioning stages are overkill for your application, you now have a simpler option. Our new ServoSpline™ positioning stages feature a unique drive mechanism that provides backlash-free motion and simplified control. Modern rack-and-pinion. ServoSpline represents a rethinking and extension of a classic rack-and-pinion design.  In this case, there are two sets of elastomeric racks located on the four underside edges of the stage’s moving platform. The pinion consists of perpendicular, direct-driven helical splines the extend under the full length of the platform. Attached directly to ServoSpline’s motors, these steel splines are vertically offset…
“How long does the belt last?” It’s one of the first questions we get when engineers look over our ServoBelt Linear stages for the first time. And it’s a natural question to ask since many engineers have had experience with a broken belt drive at one time or another. Yet the answer for ServoBelt is that the belts don’t break during the intended life of the linear stage. What’s more, the belts don’t even degrade to the point that accuracy or repeatability change significantly. We’re confident in these claims not just from field reports but also from our own round-the-clock…
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