Set of two shielded wheel bearings
Pre-lubricated
7/8″ bearing for a 3/8″ axle
This is a set of two 7R6 R-series shielded scooter wheel bearings for use on recreational scooters, kick scooters, mobility scooters, and power chairs to let the wheels spin on their axles
High temperature shields on both sides of the bearing seal the inner ball bearings from the elements
30 Day Warranty Description

This is a set of two 7R6 R-series shielded scooter wheel bearings for use on recreational scooters, kick scooters, mobility scooters, and power chairs to let the wheels spin on their axles. High temperature shields on both sides of the bearing seal the inner ball bearings from the elements.
These 7R6 shielded scooter bearings are made of chrome steel, come pre-lubricated, and are ready to install.
Note:
A 7R6 bearing is very similar in size to the more common 608ZZ but they are not interchangeable. The inner diameter or bore of the 7R6 is a larger 3/8″ as opposed to the smaller 8 mm bore of the 608ZZ bearing. Specifications

Outside diameter:
7/8″ (0.875)
Inside diameter (bore):
3/8″ (0.375)
Width (thickness)
9/32″ (0.278″)