Sealmaster SFT-20C Bearing

The Sealmaster SFT-20C flange-mount ball bearing unit is a 1-1/4 in bore, two-bolt flange assembly designed for fixed, non-expansion mounting with a setscrew lock in a cast-iron housing. The bearing insert is typically 52100 bearing steel, and seal configurations vary by model, with listings noting either a single lip contact seal or a nitrile rubber seal depending on the variant. Key dimensions include a bolt-center-to-center length of 5-1/8 in, overall length around 3-3/4 in, overall height of 6-1/8 in, and an overall depth near 1-3/4 in, reflecting the compact footprint of this standard-duty Sealmaster SFT series unit. Dynamic load ratings are commonly around 5,800 lb with a static rating near 3,500 lb, and a maximum rotational speed close to 4,650 rpm, with an operating temperature range from -20 to 220 deg F and an uncoated finish.