1. The problem

From water roller bearing damage analysis found the following structural problems in the water roll.

(1) The cost is too high. Bearing 88y0043C3 too expensive, as long as the replacement value? Mandrel 0 yuan or so, 88y0043C3 fully available domestic standard bearings 6004 instead.

(2) sealing problem. Especially water roller shaft part is immersed in dampening solution need, when fountain solution PH value is less than 6, the bearings will soon be corroded, the ball can not rotate properly, resulting in the bearing inner ring rust dead run, severe gum roll body, bearing mandrel all scrapped.

(3) The axial force problem. In addition to the fountain solution due to corrosion damage invasion, the wheel bearing will appear in "fall apart" phenomenon, namely ball bearings from the "basket" in the scattered onto the drum, so that the printing cylinder, the surface of the rubber roller, rubber rollers and other serious damage.

2. Solution

(1) self-mandrel, resize, replace imports with domestic standard bearings bearing 88y0043C3 6004.

(2) modify the rubber roll body, set up a reliable seal structure to prevent dampening fluid immersion bearings. 5 SSC production line we use, Shanghai Goss by our company has been drawing on these two issues has been improved.

(3) decomposition 6004 wheel ball bearing axial force, namely a set of 51104 shaft thrust bearing to increase.

Currently, we are still on the shaft structure and gradually all SSC production line Cots make improvements, from the improved use of rubber roller, the effect is very evil. Now, whether it is the use of water roll or roller, there is no problem as long as the plastic surface, the shaft structure, bearing absolutely no problem, and long-term use.