Fits wheels on 8mm axles, as on almost every inline skate.
Luigino Bionic Swiss bearings have titanium balls and removable rubber shields that keep dirt and water out and the lube in. A 16 pack fills a pair of 4-wheel inline skates.
Bearing features
Titanium balls: The balls inside are titanium.
Shields that protect: They keep dust and water out of the bearing.
Removable rubber shields: Fixed to the outer ring with no rubbing on the inner ring, so they hold the lube in without slowing the bearing down. They come off for cleaning.
Made for: Racers and fitness skaters moving up from ABEC 7 bearings.
Questions
ABEC 7 or Swiss?
The Swiss has titanium balls and costs more. For a good low-cost set, see the Bionic ABEC 7.
Can I clean them?
Yes. The rubber shields come off, so you can clean and oil them.
How many do I need?
Two bearings go in each wheel. A 16 pack fills 8 wheels, a pair of 4-wheel skates. A pair of 3-wheel skates takes 12, so 4 are left as spares.
Will they fit my wheels?
Yes, if your skates have 8mm axles, as almost all inline skates and most quad skates do. These are standard 608 bearings.