thrust ball grooved bearings:1,ABEC-3,5;Z2V2,Z3V3
2,High speed
3,End cover:ZZ,RS
4,Noise level:Z1,Z2
5,C2,C0,C

Lily bearing is a specialized manufacturer of thrust ball grooved bearings.

Miniature thrust bearings (or axial bearings) are available with bore sizes as small as 2mm. Miniature thrust bearings are normally supplied in SAE52100 chrome steel with brass retainers but can also be manufactured in stainless steel (possibly subject to minimum requirements).