This is a tube of 10 pcs 608 skateboard deep groove radial ball bearings.  The bearings are made with chrome steel and each has two metal shields closed on the sides to avoid contaminations.  All bearings are pre-lubricated with grease.  The bearings have excellent anti-shock performance.

 

Cienex Bearing No. 608ZZ

ID (d) 8

OD (D) 22

Width (B) 7

Enclosure Type ZZ

ABEC ABEC#1

Weight(g) 11.8