Anti-deflection apparatus for roller tube

An anti-deflection apparatus, comprising:

• a non-magnetic roller tube having an elongated wall defining an internal channel;
• an internal magnetic member disposed within the internal channel of the non-magnetic roller tube, the internal magnetic member being an axially magnetized disk having a north pole and a south pole on opposing circular faces thereof;
• and
• a discrete bottom magnetic member disposed exterior to and beneath the non-magnetic roller tube, wherein the discrete bottom magnetic member is fixed relative to the non-magnetic roller tube such that the non-magnetic roller tube is rotatable relative to the discrete bottom magnetic member, the discrete bottom magnetic member having a magnetic polarity positionally aligned to face a like magnetic polarity of the internal magnetic member through the elongated wall of the non-magnetic roller tube;
• wherein the discrete bottom magnetic member is spaced apart from the non-magnetic roller tube by a predetermined physical distance, the predetermined physical distance being an unobstructed material-winding clearance between the non-magnetic roller tube and the discrete bottom magnetic member;
• and
• wherein a repulsive magnetic force acts across a rotating-stationary-boundary between the internal magnetic member and the discrete bottom magnetic member to continuously counteract gravitational deflection of the non-magnetic roller tube.