Haven't had a chance to use them but these bearings get very sticky after opening. Judging by the noise, the bearings appear to be heavily lubricated.
Enhanced Performance Sydien SCS12UU Bearing Bushing Diameter for Precision Machinery
4 Review
FKG 99502HNR Bearing Width Pre Lubricated
5 Review
π Wheels Manufacturing Ball Retainer Bag: Convenient Storage and Protection for Your Ball Retainers
6 Review
Bearing 608- ZZ1MC3E (8x22x7) NSK//80018
4 Review