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Linear bearings in calf support

drylin W linear bearings allow calf supports to operate without lubrication or maintenance

An innovative lower leg support is designed to make long journeys in the car or on the train more comfortable: drylin W single and double rails are installed for the lower seat module's linear movement. The polymer bearings are lubricant-free, light, silent and insensitive to corrosion.

Profile

  • What was needed: drylin W single and double rails
  • Requirements: Lightweight bearing technology that operates silently and reliably in the application without lubrication or maintenance
  • Industry: Automotive industry
  • Success for the customer: drylin linear bearings are not only very lightweight, but also require no lubrication or maintenance, they generate minimal friction and no noise
Vehicle seat

Problem

This calf support is used in seats on trains or in cars where long journeys are to be made more comfortable. Linear rail technology guides the linear movement of the seat modification. Initially, at the development phase of this application, the company opted for LM ball bearings and shafts for use in trains but these had to be lubricated and maintained regularly. Since this maintenance was not always performed, functionality was limited. Other problems were the noise when the support was moved. This is not desirable in these particular applications. The previous solution was also simply too heavy for the area of application.

Solution

The customer was looking for a solution that would eliminate the disadvantages of the old solution and they found what they were looking for in our plastic bearings. Several rail systems were installed for calf support linear movement. Today, drylin W single rails and drylin W double rails are used (two WS-10 rails and four WJ200UM-01-10 carriages per calf support).
The advantage of the new polymer bearings in the application are that the systems are not only very lightweight, but also require no lubrication, therefore are completely maintenance-free. This also prevents mechanical failures. And the bearings generate hardly any friction and no noise.

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igus® GmbH points out that it does not sell any products of the companies Allen Bradley, B&R, Baumüller, Beckhoff, Lahr, Control Techniques, Danaher Motion, ELAU, FAGOR, FANUC, Festo, Heidenhain, Jetter, Lenze, LinMot, LTi DRiVES, Mitsibushi, NUM,Parker, Bosch Rexroth, SEW, Siemens, Stöber and all other drive manufacturers mention in this website. The products offered by igus® are those of igus® GmbH