Seal Master SP-18 Bearing

Sealmaster SP-18 Bearing is a standard-duty, two-bolt pillow block bearing unit designed for fixed 1-1/8 in bore shafts. Part of Sealmaster's SP Series, this pillow block combines a cast-iron housing with a 52100 bearing steel insert and a durable seal to help keep contaminants out while retaining lubrication. The unit is a fixed (non-expansion) insert with a setscrew locking collar, ensuring secure shaft retention. The SP-18’s dimensions reflect a compact yet robust mounting: an overall length of about 7-1/2 in, an overall height of about 3-7/8 in, base-to-bore centerline of 2 in, and bolt spacing typically ranging from 5-3/8 in to 6-1/8 in, with a 1-1/8 in bore and a 2-bolt base. This combination supports stable alignment on machines where precise shaft positioning is required, making it a common choice for compact, fixed-position installations in industrial equipment.