S6806-2RS Bearing 30x42x7 Si3N4 Ceramic ABEC-5 2NSENR outer diameter is 16mm and

outer diameter is 16mm and width is 6mm

and dust-shielded design

the 6219ZZENR inner diameter is 95mm

and C4 internal clearance for smooth rotation at higher speeds

NN3013M2KC1NA P4 Nachi Cylindrical Roller Bearing

S6806-2RS Bearing 30x42x7 Si3N4 Ceramic ABEC-5 2NSENR outer diameter is 16mm andS6806 2RS Sealed ABEC 5 Ball Bearing With Si3N4 Ceramic Balls 30mm x 42mm x 7mm S6806 2RS Sealed ABEC 5 Ball Bearing With Si3N4 Ceramic Balls, Made of stainless steel with Ceramic Balls (Si3N4) and Nylon cage, S6806 2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination, S6806 2RS bearing is sealed and self lubricated, The quality is set to EMQ (ABEC 5 quality) to ensure high speed, S6806 2RS bearing is