Amazon.com : Sure-Grip QUBE 8-Ball Bearings : Sports ...
The QUBE 8-ball bearing is patterned after the Fafnir bearing of the late 70s, using our 3D technology we have re-created this bearing for todays market using modern day technology. This bearing contains 8 balls instead of the traditional seven, which has many advantages. The additional ball allows the load to be spread out evenly over the ...
Get Price