BALL RUNNER BLOCK ALUMINUM KWD-025-FNS-C0-N-1

***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.RUNNER BLOCK AL KWD-025-FNS-C0-N-1 (R163129422) is a high-precision, lightweight aluminum ball runner block designed for various industrial applications. This model boasts an FNS size format, with a flange width, standard length and height, and comes preloaded free (preload class C) with standard accuracy (class N). It features a ball chain that ensures low noise levels and optimal travel behavior. The runner block body is made of aluminum, which significantly reduces the weight compared to steel versions. This model is equipped with initial lubrication and preservation using roller bearing grease Dynalub. It does not include attachment elements on either the left front or right front reference edges but does have a straight lube connection that is loosely attached. The overall length of the runner block allows for interchangeability with guide rails of every accuracy level. Its design caters to lightweight construction needs while compensating for low tolerances in connected structures. The optimized entry zone geometry along with a high number of balls reduces variation in elastic deflection. Additionally, this model offers increased rigidity under liftoff and side loading conditions due to two extra mounting screw holes at the center. Attachments can be mounted from both above and below the runner block, which also features pre-drilled holes for pinned fitting—contributing to greater parallelism and height offsets of mounting bases. The ball chain system ensures quiet operation and smooth running while providing high torque load capacity. This Bosch Rexroth ball runner block is suitable for long-term lubrication over several years, offering maintenance-free operation in many industrial settings. Its versatile design allows it to be used in combination with all rails within the same accuracy class, further enhancing its application flexibility.