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Linear guides feature adjustable clearance

Linear guides feature adjustable clearance
Adjustable clearance, lubrication-free running and resistance to contamination are current trends in linear technology. Keeping in line with these, plain bearing expert Igus has developed a DryLin W linear guide with a 'turn-to-fit' function for manual setting of the clearance. 

You decide whether the standard clearance is required or if the unit is to be pre-tensioned to be free from clearance. The tolerance of the maintenance-free DryLin W system can be adjusted over the whole bearing surface by turning a knurled adjustment screw integrated into the side using an Allen key. Adjustment is in small notched steps that can be both heard and felt. Then the bearing fits the shaft correctly and can be moved linearly. If wear occurs, the system can simply be readjusted. Lee Wilkins, DryLin product manager at Igus, comments: "The aim was to give engineers more freedom and to improve precision even further."

The guide is made up of a housing and a gliding film made of technical tribo-plastic. As well as the basic structure and continually tested materials, further features include a small design height, very low friction and excellent wear resistance. The guide requires no maintenance, is low weight and has high resistance to dirt and humidity.

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