Roll-Line MicroBearing System 7mm Bearings
Type:   Custom MicroBearing Exclusively from Roll-Line
Axle Center Bore:   7mm
Number of Balls:   Ultra Precision 9 Ball with INCREDIBLE ROLL
Special Features:   MicroBearing Permanently Mounted in an Ultra Lightweight Aluminum Expansion Rings with Carbon Impregnated Ball Crown Cage.
ABEC Rating:   ABEC 7

Only 2 Sets Left - So get them while you can! Updated 01-15-2010

The Roll-Line MicroBearing System provides an absolutely INCREDIBLE ROLL . The MicroBearing System is specifically made for very High Level Figures, Dance, Original, and Free Dance Competitive Roller Skating or just about anyone that just wants to ROLL (it is NOT recommended for FreeStyle Skating) . The MicroBearing System is wonderfully Free Rolling with minimal Radial Play which promotes and very evenly distributes the load across the 9 balls for optimal Roll and a good amount of Axial Play or Thrust, which is the side movement of the inner race in relation to the outer race. This movement is very important because when Skaters push, we always put side load on the skate to get power in the push or stroke. If the Bearing does not allow for this, it will bind and LOOSE operating speed or ROLL. These provisions in the Race Curvature and Contact Angle allow the Roll-Line MicroBearing System , to ROLL, and Roll, and Roll, and Roll, and Roll, and Roll.

The Roll-Line 7mm MicroBearing System ONLY Fits Roll-Line Frames (the shoulder of the Ultra Lightweight Aluminum Expansion Rings extend out and over the Truck, which must be machined properly to allow proper ROLL) . These wonderful bearings will not work on ATLAS Skates, and will work on only some Snyder Skates. They should NOT be used with Spacers between the two bearings in each Wheel. The MicroBearing System is mounted like Standard Bearings with the shields to the Outside.

Roll-Line 7mm MicroBearing System are the BEST ROLLING Bearings available and they are made specifically for you to enjoy while Roller Skating on Roll-Line Skates.

For more information on Bearings and their care, please check out the Bearing Information section of the Learning Center at SkatesUS.com .