... , 100Cr6, 52100,C457) Retainer: PTFE, nylon, PEEK or stainless steel8) Bore size: 1 - 100mm9) Model: 672-6709, 682-6820, 692-6920, 602 ... photos. Feature of IXIN ball bearings Structure: deep grooveType: BallBore Size: 10-100mmOutside Diameter: 20-200mmPrecision Rating: P0(ABEC1), P6(ABEC3 ...