S6900-2RS Ceramic Bearing Sealed Si3N4 Premium ABEC-5 10x22x6 Ball Bearing ucp206 the 6306-2NSENR inner diameter is

the 6306-2NSENR inner diameter is 30mm

Shaft Diameter: 1" Inch

TWD20WUU NB Bearing

SR12-2RS Stainless Steel Bearings

S6900-2RS Ceramic Bearing Sealed Si3N4 Premium ABEC-5 10x22x6 Ball Bearing ucp206 the 6306-2NSENR inner diameter isS6900 2RS Sealed Ball Bearing Premium ABEC 5 Quality with Si3N4 Ceramic Balls (Silicon Nitride) S6900 2RS is double sealed, radial and deep groove ball bearings,S6900 2RS bearing is made from stainless steel with Ceramic Balls (Si3N4) and Stainless steel cage,S6900 2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination,S6900 2RS bearing is sealed and self lubricated,the quality is set to EMQ (Premium