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04/11/2020 - 05/11/2020

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Guide ball bushing for miniature sizes

Guide ball bushing for miniature sizes
Thanks to the introduction of raceways, the new LG guide ball bushing from THK features greatly increased load capacities and an integrated anti-twist feature. This provides a more compact cost effective design of this linear guide unit.

The four raceways using circular arc groove design are evenly positioned around the circumference of the shaft and inside the nut. In comparison with the conventional ball bushing product using point contact, the load capacity is increased by a factor of 2,4 to 3,8 depending on the size considered. The resultant effect of the load capacity increases the lifetime exponentially. Therefore providing a much-improved performance from the same envelope size of ball bushing. In addition the ball raceways offer the ability to support torque and so provides an anti-twist feature.

The LG guided ball bushing is initially available with shaft diameters of 4, 6 and 8 mm. Standard, short and long nut versions are all available.
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