Carries radial and moderate axial loads on a single row of balls running in deep raceway grooves, with a bore of 55.0 mm, outside diameter of 90.0 mm and width of 18.0 mm. The bearing weighs 0.385 kg and is fitted with metal shields on both sides together with a pressed steel sheet metal cage (JN). Limiting speed is 9100 1/min, reference speed 8300 1/min, and the internal clearance is increased to C3 (Group 3) to compensate for thermal expansion during operation. The C3 clearance allows the deep groove ball bearing to run without excessive preload when shaft and housing temperatures rise, which is relevant where operating temperature exceeds ambient significantly. The metal shields keep grease inside the bearing and limit ingress of coarse contaminants, but do not provide a full seal, so relubrication intervals should follow the grease used in the application. Dimensionally and constructionally equivalent to SKF 6011-2Z/C3, NSK 6011ZZC3 and NTN 6011ZZC3.