The global site of the UK's leading magazine for automation, motion engineering and power transmission
18 August, 2017

Product and Supplier Search

Facebook

Self-lube ballscrews keep turning for 20,000h

01 April, 2003

Self-lube ballscrews keep turning for 20,000h

Thomson, the linear motion company now owned by Danaher, has developed a new form of self-lubricating ballscrew that, it claims, will operate continuously for more than 20,000h.

Traditionally, ballscrews have had to be lubricated with grease or oil every 800—1,000h of operation. Thomson`s new SL system (above) lubricates the bearing track directly by transferring a thin film of oil from a patented solid, oil-filled polymer matrix.

The liquid lubricant, in the enclosed polymer matrix, "bleeds" onto the bearing track through a network of capillaries. The grease conventionally used to lubricate ballscrews typically contains 35% oil suspended in a thickening agent. Thomson`s SL system is contained in the ball nut housing, and holds 70% oil in a much larger reservoir, allowing lubrication intervals to be extended ten-fold.

Thomson claims that the new system does not affect operating temperatures or transfer speeds. It adds that the benefits for users will include: lower noise levels; reduced production of particles and release of lubricants; and extended maintenance intervals and product lives.




Magazine
  • To view a digital copy of the latest issue of Drives & Controls, click here.

    To visit the digital library of past issues, click here

    To subscribe to the magazine, click here

    To see the latest Products & Services Directory, click here

     

Exhibition

Birmingham 2018The next Drives & Controls Exhibition and Conference will take place in Birmingham, UK, from 10-12 April, 2018. For more information on the event, visit the Show Web site

Poll

"Do you think that robots create or destroy jobs?"

Newsletter
Newsletter

Events

Most Read Articles