Eccentricity – Variation in circularity on the diameter of the ring tube is known eccentricity. Lower the eccentricity in Ring Tube will result in higher quality and performance of the Ring Tube. PC ring tube has an eccentricity of upto 0.1 mm. During normal usage it tends to increase due to the work stress and strain.
WT – Wall thickness in Ring tube near spindle button has maximum load and friction due to higher speed. Hence higher wall thickness with low eccentricity is optimum for high speed Ring frames.
Taper – The normal tube taper are 1:38, 1:40 and 1:64
1:40 Tapes = 1mm diameter difference in 40mm length.
Tube clearance – The clearance between Ring Tube & Spindle is called as Tube clearance. Lower the clearance lower the eccentricity in high working spindle speed. Tube clearance should be maintained in such a manner that is should with stand the contraction caused by winded yarn on tube, for easy removal.