Sealmaster NPD-23 Pillow Block Housing Unit Bearing

Sealmaster NPD-23 pillow block housing unit bearing is a two-bolt, cast-iron mounting block designed for a 1-7/16 in (1.4375 in) bore shaft. It contains a bearing insert made from 52100 bearing steel and is finished with a black oxide coating for corrosion resistance. The unit employs a double setscrew locking arrangement to secure the bearing insert within the housing and features a felt labyrinth seal to help exclude dirt while retaining lubrication in standard-duty service. The NP-series two-bolt base provides straightforward alignment and rigid shaft support for horizontal installations in equipment such as conveyors, agricultural machinery, fans, and other stationary machinery where reliable, moderate-load operation is required. With its combination of cast-iron housing, precise bore sizing, and a durable bearing insert, the NPD-23 is built for long, maintenance-friendly service in light-to-moderate-load applications and is compatible with common NP-series accessories and mounting patterns used across Sealmaster pillow block lines. The rugged housing offers rigidity and vibration resistance to support continuous operation in demanding environments.