1. The ECO hub system can be assembled and disassembled at any only with atorque spanner and one piece of tool respectively for hub cap axle nut.
2. The bearing and hub are fixed as a whole with circlips for holes at the positions of outer and inner bearing, the bearings will be not separated while maintaining the axle.
3. Easy assembly and disassembly, increasing efficiency of maintenance.
The center hub lock nut is blocked inside the hub by the circlip, when it is twisted, the whole hub system can be taken out, in this way，the hub can be assembled and disassembled as an entirety including the wheel rim, tyre，brake drum and bearing, which will raise the efficiency of Replacing brake shoes, saving at least 50% time of changing brake shoes.
4. Extend the bearing's using life: filling lubricant grease into the hub system which has bearings fixed inside, the special structure will availably prevent corrosion of dust and water, extend the bearing's using life.
5. The used bearing is standard bearing which can be sourced with the model numbers anywhere.