Sealmaster NP-28 Pillow Block Bearing

Sealmaster NP-28 Pillow Block Bearing is a standard-duty, fixed (non-expansion) pillow block unit designed to support a rotating shaft in a compact two-bolt base. It features a cast-iron housing with a 1-3/4 in bore, a setscrew locking collar, and a felt/multi-lip seal to retain lubrication. The assembly provides a shaft height of 2-1/8 in, an overall length of 7-1/2 in, and an overall height of 4-1/4 in, with bolt centers ranging from 5-7/16 to 6-1/16 in and a base width of 2-1/8 in. Mounting bolts are typically 1/2 in, and the unit is rated for speeds up to 350 rpm with a dynamic load around 7,901 lb, spanning an operating temperature from -40 to 200 degrees Fahrenheit. This NP-28 configuration is suited for general-purpose drives, conveyors, and other shaft-driven machinery where reliable, rigid shaft support within a cast-iron housing is required.