The global site of the UK's leading magazine for automation, motion engineering and power transmission
20 April, 2018

Product and Supplier Search

Facebook

Aluminium rails do not need machined surfaces

01 February, 2005

Aluminium rails do not need machined surfaces

Rexroth has developed a linear bearing technology which, it claims, plugs a gap in terms of performance and cost between bushings and ball rails. The new eLine ball rails combine an aluminium base material with raceways made from a hardened, anti-friction bearing steel.

The result, says Rexroth, is a light, compact and corrosion-resistant linear motion technology with an identical loading capacity in all four main directions of loading. The maintenance-free rails weigh about 60% less than equivalent steel rails.

One attraction of forming the rails from a wrought aluminium alloy is that the mounting surface is less critical than normal. In some applications, the rails can even be mounted on sheet steel or on uneven surfaces which have not been machined.

In addition to light machinery duties, in applications such as handling systems and packaging machinery, Rexroth expects the low-cost rails to find uses in non-industrial applications, such as door and window guides, fitness equipment, furniture and vehicles.

The rails, which enter production in April, will be available in three sizes (15, 20 and 25) and in lengths up to 2m. There will be two runner block designs: one for high-accuracy applications; the other for less demanding applications.




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