good price steel tube for making conveyor idler roller from china supplier

 good price steel tube for making conveyor roller from china supplier        1. Conveyor roller pipe     We will use tube speciall for roller,compared with ordinary steel tube, in the following aspects, it has great advantages which can make the roller have minimum radial play eccentricity  

Items	Ordinary steel tube	Tube specially for roller
Outside diameter tolerance	± 0.8mm	± 0.3mm
Wall thickness tolerance	± 0.38mm	± 0.1mm
Bending degree	≤ 1.5mm/m	≤ 0.5mm/m
Ovality	≤ 0.6	≤ 0.15
Height of inner bur	+0.5~ -0.2	0

    Comparasion with other supplier's steel tube (the left one is ours)