This little bearing is a big deal. The brass protection sleeve bearings reduce friction between the protective sleeve and the flex shaft.
The bearing also helps prevent dirt from getting into the flex shaft sleeve. Less dirt between the sleeve and the shaft ensures the longevity of both the sleeve and the shaft.
The average operation speed is between 1200 and 2000 RPM. At this speed, the flex shaft tends to grind the sleeve slightly on the ends. The bearing attaches to the flex shaft sleeve and acts as a barrier between the sleeve and the shaft.
Sold as a set of two. (Drill end, and tool end bearing).
The new beveled bearings are available in size 6mm - 8mm and 12mm
For flexible shafts of the following diameters: 8mm (5/16") , 10mm (3/8"), and12mm (1/2").
Product pictures may vary in color and design depending on the size and diameter that you order