NMB metric and imperial bearings manufactured to ABEC 5. The bearings are suitable for use with precision instruments, chart recorders, etc. Manufactured from corrosion-resistant steel, the bearings are available in two designs: plain and flanged. The metric and imperial bearings incorporate double metallic protection shields, and the metric plain bearings are also available in Chromium Steel. Inside Diameter = 8mm Outside Diameter = 12mm Ball Bearing Type = Radial Race Width = 3.5mm End Type = Shielded Number of Rows = 1 Static Load Rating = 246N Material = Metal Ball Material = Martensitic Stainless Steel Race Material = Martensitic Stainless Steel