uxcell MR117ZZ Deep Groove Ball Bearing 7x11x3mm Double Shielded Chrome Bearings 10pcs 7mmx11mmx3mm cocoon Please feel free to contact

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and allows blades to stay sharp for a significantly longer period of time

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uxcell MR117ZZ Deep Groove Ball Bearing 7x11x3mm Double Shielded Chrome Bearings 10pcs 7mmx11mmx3mm cocoon Please feel free to contactuxcell MR117ZZ Deep Groove Ball Bearing 7x11x3mm Double Shielded Chrome Bearings 10pcs Deep Groove Ball Bearings Ball bearing, in which the rolling elements are spherical balls. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. (Reducing the friction of certain moving parts by replacing sliding friction with rolling friction)With small friction and high limit speed, cost effective and require little