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Igus has developed the Drylin WJRM, a hybrid linear bearing that rolls and slides.

The system reduces driving force and is suited to applications that combine sliding and rolling movements, such as manually adjustable doors, guards, partitions and locks, as well as for light-handling tasks.

The lubricant-free plastic sliding plain bearings ensure the hybrid linear system is robust, lightweight, and insensitive to dirt and humidity.

The polymer rollers allow for manual adjustment of heavy machine doors and protective doors that can weigh up to 50kg.

At a defined installation position, the roller bearing, which carries the main load, reduces the overall driving force by a factor of between four and five, easing manual operation.

The principle of the installation position for the hybrid bearing is such that the main load is on the roller bearing, which reduces the driving momentum required.

The plastic sliders compensate any lateral forces.

The WJRM is a flexible, modular system made of hard, anodised-aluminium profiles, die-cast zinc housings, stainless-steel or aluminium and plastic plain bearings.

Combined with different carriage lengths, the rail widths permit several combinations.

Design sizes range from 6mm to a shaft diameter of 20mm.

All the Drylin guide systems work without lubricants as dry-running systems, which means that they do not have to be serviced during operation.

The linear bearings are offered with the polymer sliding bearings Iglidur J or Iglidur J200, both with low-wear and low-friction values.

They are resistant to chemicals, help dampen vibrations and are impervious to moisture that might accumulate in humid environments.

The hybrid linear bearing design is based around the Drylin W linear guide family.

The roller fits inside without increasing the overall design width, which remains at 18mm.

Standard economic guide profiles can be used, which are available in three styles for 10mm diameter shafts – as individual rails for a flexible guiding distance or as double rails with centre spacing of 40 or 80mm, which allow self-aligning for speedy installation.

The hybrid bearing housing is of blue-chromed diecast zinc.

Igus

Igus is the largest producer of reinforced plastic energy chains and injection-moulded polymer bearings. The range of polymer bearings includes Iglidur plain, Igubal spherical and Drylin linear bearings. They offer an excellent price-to-life relationship and are developed under the toughest conditions. They are oil, maintenance and lubrication free, low wear, resistant to dirt and dust, corrosion free and simple to fit. Igus also has the data to precisely predict the lifetime of these bearings within a specific application.

Igus is the largest producer of reinforced plastic energy chains and injection-moulded polymer bearings. The range of polymer bearings includes Iglidur plain, Igubal spherical and Drylin linear bearings. They offer an excellent price-to-life relationship and are developed under the toughest conditions. They are oil, maintenance and lubrication free, low wear, resistant to dirt and dust, corrosion free and simple to fit. Igus also has the data to precisely predict the lifetime of these bearings within a specific application.

Energy chains are the umbilical cord of modern machines. They minimise downtime and protect, support and extend the service life of cables and hoses. The broad range incorporates more than 30,000 innovative, low-cost products. From the smallest ‘micro’ chain to the largest chain in the world, the E4.350, Igus energy chains are capable of long and short travel distances at high speeds in all axes.

Igus also has its own cable series, Chainflex, specially designed with energy chains in mind. They are highly flexible cables, offering a long service life and very small bending radii. A wide range is available, from small signal cables to large power cables, high-speed data cables and glass fibre-optic cables.

The company’s energy chains and Chainlflex cables can be delivered as a fully harnessed and pre-assembled Readychain system, cutting purchasing, warehousing and installation costs.

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