An industrial delta robot with an arm system rotatable in space and
including a base section, a moveable plate, several multi-jointed pull
rods and a telescopic axle arranged between the base section and the
moveable plate, opposite ends of the pull rods and of the telescopic axle
being connected with the base section and the moveable plate
respectively, and the telescopic axle comprising an inner axle and an
outer tube arranged on the inner axle and displaceable in a longitudinal
direction where a pair of end-to-end torsional rigid bushings are
arranged in a stationary manner on the outer tube in which the inner axle
is mounted to be displaceable, the bushings being spaced apart at
confronting inner ends to form a transversely extending lubrication
pocket for continuous lubrication of the inner axle during movement
relative to the bushings.
