The 5000® Series of bearings is similar in construction to the 400® Series bearing except it has a flange on the outer ring to locate the bearing when pressed into a tube or housing, thus eliminating the need for an external mounting device. The bearings are designed for moderate loads and speeds where running accuracy and noise level requirements do not warrant the more expensive precision ground bearings. This series of bearings feature a full ball complement without a retainer. The rings are case hardened and the soft steel band on the outer ring of the unitized assembly allows the bearing to be pressed into a housing without the necessity of close housing tolerances. The bearings are supplied pregreased as a standard. The bearings are designed for use in applications with speeds not exceeding 1200 RPM. Nice® Unground Flanged Radial Ball Bearing, Round Bore, Series: 5000®, 1/2 in Bore Dia, 1-1/2 in Outside Dia, 1 Row, 0.531 in W, 1.656 in Flange Dia, Open Closure, 492 lb, 52100 Steel Bearing, 1200 RPM Maximum, 300 °F, Uncoated