Speed and cleanliness have always been two major issues in the Manufacturing process. The Moc 9 Airrr... addresses both issues. Manufactured with the highest quality USA made balls, finer polished raceways and a seal system that is different from all other methods of bearing seals in the bearing industry at the present time.
The Moc 9 Buna Non-Contact Seal is set into a U-channel design in the outer race and a stop on the inner race to keep all foreign particles out of the ball area. It also stops any oil leakage that might occur on a standard bearing seal. The Moc 9 design changes put the Airide a step ahead of all other bearings.