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Advanced Engineering 2021

NEC Birmingham(B40 1NT)

03/11/2021 - 04/11/2021

Join us in our 12th and most important edition to date, as we invite engineers and management from all (more)

Linear recirculating and guideway assembly sets new standards

Linear recirculating and guideway assembly sets new standards

Schaeffler’s sixth generation RUE-F range of linear recirculating and guideway assemblies is said to offer significantly reduced stroke pulsation, a 40 percent reduction in required displacement force, and a reduction of up to 30 percent in displacement force fluctuations. These major improvements ensure greater ease of actuator control and increased positioning accuracy. When fitted on the main axis of the machine tool, the new assembly design is claimed to deliver higher surface finish quality, while the lower displacement forces have a noticeably positive impact on energy consumption and actuator operating costs, especially in axes operating at high cycle numbers.

Schaeffler has flow-optimised the design of the lubrication ducts to ensure optimal lubricant distribution to all four raceways, irrespective of carriage mounting position, reducing lubricant consumption by up to 50 percent. The enhanced tribological properties increase the reliability of machines fitted with RUE-F guidance systems, and even extend their service life. For operators, lower lubricant consumption offers savings on a number of levels: they save on procurement and disposal as well as on lower oil separation costs for machines that use cooling lubricants.

The seals used in the new RUE-F linear recirculating and guideway assemblies have been specially designed to accommodate the trend towards integrated machining centres that combine multiple different production technologies. The upper and lower sealing strips feature an additional labyrinth seal. The new ultra-low friction end seal offers optimal wiping performance while delivering maximum protection against contaminant ingress. It is suitable for all guideway variants and all types of closing system, whether plug or covering strip. The end result is a standardized and reliable seal design for all guideway variants.

Closing up guideway fixing holes is a key factor in the time it takes to mount linear axes. With this in mind, Schaeffler has developed a one-piece/two-piece plastic closing plug that comprises a clinch ring and the plug itself. The one-piece design concept makes the plug much easier to handle and drive into place. This cuts mounting times by some 50 percent in comparison with other closing-plug solutions. In view of these benefits, RUE-F linear recirculating roller bearing and guideway assemblies ship with the new one-piece/two-piece plastic closing plugs as standard.


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