The NP-25 is a 25mm bore, two-bolt pillow block housed bearing unit. Typically manufactured by brands like NSK/RHP, it features a durable cast-iron housing and a pre-lubricated insert, commonly used to support rotating shafts in industrial applications. Model NP-25 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description The NP-25 (or NP25) is a standard pillow block bearing unit with a 25 mm inner diameter and a two-bolt housing; it is widely used in