V Type Ball Bearing Model Bearing Type Inside Diameter Outside Diameter Thickness V623ZZ Metal Shielded 3mm 12mm 4mm V624ZZ Metal Shielded 4mm 13mm 6mm V625ZZ Metal Shielded 5mm 16mm 5mm V623 open frame ball bearing size is 3*10*3mm, which is different from V623ZZ metal shielded that is 3*12*4mm...