Radial loads are carried by a single row of balls running in deep grooves, with the bore of 55.0 mm, outside diameter of 90.0 mm and width of 18.0 mm giving a compact envelope for the load capacity offered. Both sides are closed with steel shields (2Z), and the ball complement is guided by a steel sheet metal cage (JN). The bearing runs with normal radial internal clearance (CN, Group N) and reaches a limiting speed of 9100 1/min, with a reference speed of 8300 1/min; mass is 0.385 kg. The steel shields keep the pre-applied grease fill in place and restrict ingress of coarse contaminants, so the bearing suits positions where the housing itself does not provide sealing but relubrication is not required over the service interval. CN internal clearance corresponds to standard fit conditions without preload, making this 6011-2Z suitable for general-purpose shaft arrangements with moderate radial load and no significant misalignment. Dimensionally and constructionally it corresponds to SKF 6011-2Z, NSK 6011ZZ and NTN 6011ZZ.