BALL RUNNER BLOCK RESIST NRII KWD-025-SNS-C2-H-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-SNS-C2-H-0 (R201122304) is a high-precision, corrosion-resistant ball runner block designed for linear guidance systems that require a slimline width, normal length, and standard height. This product features an average preload (class C) and high accuracy (class H), ensuring smooth and precise movements without the need for a ball chain. It is constructed with corrosion-resistant steel in accordance with DIN EN standards, making it suitable for environments exposed to corrosive substances or high humidity. The runner block body is of a standard version with an overall length of 63.5 mm and can be used on all SNS ball guide rails. It offers interchangeability across various accuracy classes, enabling flexibility in combining the runner block with different guide rails. The patented entry zone increases travel accuracy by up to six times, while the optimized entry-zone geometry and the high number of balls reduce elastic deflection variation. Dynamic characteristics are enhanced due to the four-point contact design which minimizes friction even under external loads. The integrated minimum quantity lubrication system allows for long-term lubrication over several years, significantly reducing maintenance requirements. This model also boasts all-round sealing for protection against contaminants such as dirt and chips, extending its service life in harsh conditions. Furthermore, it can handle high load ratings in all four main directions of loading, making it versatile for various applications. With a permissible ambient temperature range from -10°C to 80°C (admissible for short time), this ball runner block maintains performance across various operating conditions. Lastly, it has no initial lubrication or preservation applied and lacks attachment elements on both left and right front reference edges but includes a straight lube connection loosely attached. In summary, the Bosch Rexroth B.RUNN. BLOCK NRII KWD-025-SNS-C2-H-0 offers robustness against corrosion, precision movement control, low maintenance needs, and adaptability across different rail systems—ideal for applications where space is limited in the transverse direction and where long-term reliability is crucial.