BALL RUNNER BLOCK RESIST NRII KWD-025-FNS-C0-N-0

***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth B.RUNN. BLOCK NRII KWD-025-FNS-C0-N-0 (R200129404) is a premium ball runner block designed with high precision and corrosion resistance in mind. This runner block is notable for its use of Resist NRII material, which makes it highly resistant to corrosive environments and suitable for use in conditions with high humidity or exposure to water-based media, acidic materials, alkali, or saline solutions. The block is standardized to size 25 with an FNS format indicating a flanged width, normal length, and standard height. Crafted from corrosion-resistant steel as per DIN EN standards, the runner block body and all steel components are built to endure challenging conditions without the need for additional corrosion protection. This makes it an excellent choice for clean room applications or printed circuit board manufacturing where cleanliness and resistance to harsh substances are paramount. The Bosch Rexroth ball runner block boasts a preload class C, meaning it is preload-free for smooth motion without excess friction. It falls under accuracy class N for standard precision levels. The product does not include a ball chain or initial lubrication and comes without preservation measures or attachment elements. With its straight lube connection loosely attached, this runner block can facilitate long-term lubrication over several years while maintaining maximum precision. Its patented entry zone enhances travel accuracy up to six times compared to standard systems and supports high rigidity requirements. Interchangeability is another key feature of this model; it can be combined with guide rails of every accuracy level. The product also offers impressive dynamic characteristics due to its optimized entry zone geometry and the high number of balls which reduce variation in elastic deflection. This Bosch Rexroth ball runner block is available in five common sizes and boasts metal-threaded lube fittings on all sides, ensuring consistent load ratings in all four main directions of loading. Moreover, the minimum quantity lubrication system integrated within allows for efficient oil lubrication—further extending the product's service life even under demanding operational conditions.