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A ballscrew assembly, bearings and shafting rail assemblies from Thomson have been used by Artec Imaging to support heavy loads while delivering accurate positioning in its EquusCT, a patient position and CT scanning table with a floating carousel that offers a high degree of manoeuvrability for veterinarians practising equine healthcare.

The ballscrew assembly, bearings and shafting rail assemblies allow a horse’s head, neck, front and rear legs to be accurately scanned in any CT scanner, with 2D and 3D diagnostic image output.

The Thomson ballscrew assembly moves the EquusCT carousel in a longitudinal direction for a distance of 36in (91cm). The ballscrew is driven by a servomotor that gets its data from an onboard computer; the computer obtains its data from a sensor that tracks the movement of the CT tabletop.

The longitudinal movement and weight of the carousel/carriage/patient is accomplished by riding on two 1in Thomson 60 Case Linearrace stainless steel shafts that are each 84in long, with double pillow-block bearings. The lateral movement and combined weight of the carousel/carriage/patient is accomplished by riding on four 0.75in 60 Case shafts, each 15in long and supported by double pillow blocks.

The Thomson solution supports total loads up to 1,360kg (3,000lb) while delivering lateral movement accuracy to ±3.0in — capabilities that permit ease of patient positioning and accurate anatomical scans for horses and other large animals up to 935kg (2,100lb).

Key benefits of product application

  • The Thomson solution met all of Artec Imaging’s design criteria, which included smooth, backlash-free motion, total weight and drive accuracy and accurate and repeatable motion.
  • It did so within budget.

Thomson – Linear Motion. Optimized.

Often the ideal design solution is not about finding the fastest, sturdiest, most accurate or even the least expensive option. Rather, the ideal solution is the optimal balance of performance, life and cost. Thomson is best positioned to help you most quickly configure the optimal linear motion solution for your application.

  • Thomson invented anti-friction linear bearing technology. We own the broadest standard product offering of mechanical motion technologies in the industry.
  • Modified versions of standard product are routine. White sheet design solutions are available across our entire portfolio.
  • Choose Thomson and gain access to over 70 years of global application experience in diverse industries including packaging, factory automation, material handling, medical, clean energy, printing, automotive, machine tool, aerospace and defense.
  • As part of Danaher Corporation, we are financially strong and unique in our ability to bring together control, drive, motor, power transmission and precision linear motion technologies.

Thomson is the name you can trust for quality, innovation, on-time delivery, controlled costs, and reduced risk. Talk to us early in the design process to see how Thomson can help identify the optimal balance of performance, life and cost for your next application. And, call us or any of our 2000+ distribution partners around the world for fast delivery of replacement parts.

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