Sealmaster SF-8 Goldline Flange Bearing (700431) is a cast-iron, four-bolt flange-mounted ball bearing unit designed for standard-duty service on a 1/2 in shaft. The Gold Line insert uses 52100 bearing steel with a black-oxide finish and a setscrew locking feature to secure the shaft, delivering reliable radial support in compact flange assemblies. This 4-bolt flange unit specifies a 1/2 in bore, a bolt-center-to-bolt-center length of 2-1/8 in, an overall length of about 3 in, and a height of roughly 3 in, with an approximate weight of 1.4 lb.
