Seal Master NP-23 Gold Line Pillow Block Bearing

The Sealmaster NP-23 Gold Line Pillow Block Bearing is a standard‑duty, 1-7/16" bore housing designed for dependable light‑to‑moderate load service. The gray cast‑iron, two‑bolt pillow block accepts a Sealmaster Gold Line ball‑bearing insert and uses a replaceable insert (2-17) made from 52100 bearing steel with a black oxide finish. Its dimensions include a 6.563" overall length, 3.75" overall height, and a base width of 1.875" with bolt centers ranging from 4.688" to 5.313". The unit features a felt labyrinth seal, is relubricatable with Lithium Complex NLGI 2 grease, and employs set screws to lock the shaft. The bore is 1.438" (1-7/16"), centerline to front face is 1.0", and the NP-23 offers static misalignment tolerance of ±2°. Operating parameters include a maximum speed of 4,650 rpm and a maximum operating temperature of 220°F, with an installed weight of approximately 5 lb and a solid housing base. This NP-series housing provides a durable, easy‑to‑install solution for belt‑driven and shaft‑mounted applications where a replaceable bearing insert and Gold Line performance are advantageous.