S61903-2RS Ceramic Bearing Sealed Si3N4 ABEC-7 17x30x7 Bearing Outer Diameter - 31mm 1/4" x 1/2" x 3/16"

1/4" x 1/2" x 3/16" inch

5mm - Double Sealed - Made in Japan

125") x 1/4" (0

23218EXW33

Equal: R2-5-2Z &R2-5-ZZ

S61903-2RS Ceramic Bearing Sealed Si3N4 ABEC-7 17x30x7 Bearing Outer Diameter - 31mm 1/4" x 1/2" x 3/16"S61903 2RS Sealed Ball Bearing Premium ABEC 7 Quality with Si3N4 Ceramic Balls (Silicon Nitride) 17mm x 30mm x 7mm S61903 2RS Sealed Ball Bearing is double sealed, radial and deep groove ball bearing,bearing is made from stainless steel with Ceramic Balls (Si3N4) and Stainless steel cage,S61903 2RS bearing is closed with rubber seals to protect the bearing from dust or any possible contamination,bearing is sealed and self lubricated,the quality is set