Sealmaster SFT-25 is a standard‑duty, two‑bolt flange ball bearing unit designed for a 1-9/16 in bore. The cast‑iron housing accepts a fixed (non‑expansion) bearing insert with setscrew locking, and it employs a felt labyrinth seal for basic contamination control. The 2‑bolt flange features a center‑to‑center mounting distance of 5‑21/32 in, an overall length of 6‑3/4 in, with an overall depth of 2‑1/64 in and height of 4‑1/8 in. It carries a dynamic load rating of about 7,340 lb and a static rating of about 4,467 lb, uses 52100 steel bearings, is uncoated, and is rated for operation up to 220 deg F.
