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Rotary Tables

Aerotech introduces compact hexapod for precise 6-DOF motion

December 30, 2021 By Paul Heney Leave a Comment

Aerotech Inc. has released the HEX150-140HL, a miniature hexapod six degree-of-freedom (DOF) positioning system that provides precise translation in the X, Y and Z directions and rotation around each of these axes. The HEX150-140HL delivers significantly better minimal incremental motion and more linear travel than its competitors — all within a compact yet stiff platform. “This hexapod’s combination of small […]

Filed Under: Integrated Motion Systems, Rotary Tables Tagged With: Aerotech

What are radial and axial runout and how do they affect rotary tables and stages?

March 8, 2021 By Danielle Collins Leave a Comment

rotary actuator sizing

Runout is a dimensional specification that defines error in the motion of a surface as it moves relative to a datum. The official geometric dimensioning and tolerancing (GD&T) definition of runout applies to the variation of a circular feature — such as a shaft or spindle — as it rotates over 360 degrees, although the term […]

Filed Under: FAQs + basics, Featured, Rotary Tables

How to calculate crossed roller bearing life (with various load types)

February 11, 2021 By Danielle Collins Leave a Comment

crossed roller bearing

A crossed roller bearing is a type of rotary bearing that uses cylindrical rollers arranged in a crisscross pattern, with each roller oriented at a 90 degree angle relative to the one adjacent to it. This arrangement allows crossed roller bearings to withstand radial, axial, and moment loads, so they can often replace dual-bearing arrangements, for […]

Filed Under: Bearings, FAQs + basics, Featured, Rotary Tables

What are the key parameters to consider when sizing and selecting a rotary actuator?

February 5, 2021 By Danielle Collins Leave a Comment

Rotary actuators — and their counterparts, rotary stages and rotary indexing tables — are designed to move loads radially with high positioning accuracy. Similar to linear actuators, sizing a rotary actuator requires evaluating parameters such as torque, speed, and inertia, as well as ensuring the actuator can meet the application requirements for positioning the load, such […]

Filed Under: FAQs + basics, Featured, Rotary Tables

What are rotary actuators and how do they differ from other rotary tables?

January 11, 2021 By Danielle Collins Leave a Comment

When we think about actuators, we typically think about linear actuators — devices that move loads in a straight line, driven by a screw, belt, or other mechanical power transmission device. But there also exists a class of actuators that provide rotary motion for positioning a load radially around a fixed axis. While these rotary […]

Filed Under: FAQs + basics, Featured, Rotary Tables

Drives propel multi-axis motion

January 17, 2019 By Miles Budimir Leave a Comment

piezo scanners

Drive systems based on parallel kinematics with electromagnetic and electro-ceramic drives can improve dynamics, resolution and accuracy in applications needing high precision and multiple degrees of freedom. Stefan Vorndran, Vice President Marketing Scott Jordan, Director of NanoAutomation Technologies, Physik Instrumente L.P. (PI) Motion simulation is often a crucial piece of the design process for evaluating […]

Filed Under: Drives + Supplies, Featured, Gantries + Stages, Rotary Tables Tagged With: physikinstrumente

Expanded precision rotary indexer line from Nexen now motor/gearbox-ready

August 30, 2018 By Miles Budimir Leave a Comment

rotary indexer

Nexen’s Motor Ready Sealed (MRS) precision rotary indexer maintains the benefits of the company’s existing patented precision roller pinion drive design – zero backlash, high precision, high torque, and high acceleration – while delivering significant new benefits. A high roller pinion-to-gear ratio lets designers direct drive the system with the addition of a servo motor […]

Filed Under: Integrated Motion Systems, Rotary Tables

Oriental Motor 60-mm DG II rotary actuator with AlphaStep AZ Series absolute encoder stepper motor

August 29, 2018 By Lisa Eitel Leave a Comment

Oriental Motor is pleased to expand the DGII Series product lineup and AlphaStep hybrid control system with the introduction of the new 60 mm DGII rotary actuator. The DGII Series is a line of products that combine a high rigidity hollow rotary table with an AlphaStep absolute encoder AZ series closed loop stepper motor and […]

Filed Under: FAQs + basics, Featured, Integrated Motion Systems, Rotary Tables Tagged With: orientalmotor

Zero-backlash servo rotary indexing table from Sankyo Automation

April 10, 2018 By Lisa Eitel Leave a Comment

The Sankyo Automation RollerDrive Reducer is a precision gear reducer that uses a zero-backlash roller gear mechanism. The unit is constructed from an input shaft and a turret (output shaft) that is assembled with roller followers. The roller followers are preloaded against a screw-like input shaft to eliminate backlash. Sankyo servo indexing tables offer a […]

Filed Under: Featured, Gears + Gearing, Mechanical PT, Rotary Tables

New Oriental Motor DGII rotary actuators with AZ Series dc input drivers

February 20, 2018 By Lisa Eitel Leave a Comment

Oriental Motor now sells an expanded lineup of DGII Series rotary actuators — including two new dc input AZ Series driver options. As the demand for complete high-accuracy and efficient rotary actuators grows, Oriental Motor has answered with the introduction of the AZ Series dc input drivers. This allows for more applications that are using dc […]

Filed Under: Gantries + Stages, Integrated Motion Systems, Rotary Tables Tagged With: orientalmotor

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