R2-5-2RS Full Ceramic Bearing 1/8" x 5/16" x 9/64"inch ZrO2 Bearing 7017CYP4 the NKI9/12 inner diameter is

the NKI9/12 inner diameter is 9mm

Rubber seals keep out dirt and moisture

5307 Nachi Ball Bearing

S6206ZZ Ball Bearing

OD (outer diameter): 6mm

R2-5-2RS Full Ceramic Bearing 1/8" x 5/16" x 9/64"inch ZrO2 Bearing 7017CYP4 the NKI9/12 inner diameter isBall Bearings R2 5 2RS Full Ceramic 1 8" x 5 16" x 9 64" Zirconia R2 5 2RS Full Ceramic Ball Bearing, measures an inner diameter of 1 8", outer diameter is 5 16" and the width is 9 64", a standard bearing size commonly used in a variety of industrial and commercial applications, Bearing is made from Ceramic. R2 5 2RS Ball Bearing Full Ceramic Ball Bearing Cage Material: PTFE (Polytetrafluoroethylene) Closures: PTFE Covers (white) Balls: Made from