Attributes . 80MM Bore; 125MM Outside Diameter; 88MM Width; Open Enclosure; ABEC 7 | ISO P4 Precision; Ceramic Ball Material; 4 (1 Quadruplex Set) Bearings; 15 Degree Contact Angle; Phenolic Cage Material; 1 Rib Inner Ring and Outer Ring Raceway Type; Ball Bearing . Names