Professional, High-Performance Quality Double Labrinth, non-contact, removable rubber shields allow easy cleaning and ultra low friction High speed nylon ball retainer for greater strength and speed Pre-lubricated with Speed Cream racing lubricant Bones Bearings have a lifetime warranty which protects them against manufacturing defects.
This is a new bearing similar to the original Bones Swiss bearing, with a re-designed inner race and two labyrinth seals. These seals are non-contact and float in a groove machined in the inner race to make sure there is no added friction.
