BALL RUNNER BLOCK CARBON STEEL KWD-025-FNS-C1-X-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 CS KWD-025-FNS-C1-X-1 (R165121821) is a high-precision ball runner block designed for linear motion on guide rails. This component is part of Bosch Rexroth's Ball Rail Systems and offers exceptional rigidity, dynamic characteristics, and accuracy. It features a size 25 runner block body made from unalloyed steel CS and conforms to the FNS format, indicating a width flange, normal length, and standard height. The preload class C signifies a low preload for the system, while the accuracy class XP denotes extra precision. This runner block does not include a ball chain but comes with initial lubrication and preservation using Roller bearing grease Dynalub. It has been engineered to provide significantly reduced frictional oscillations and maintain a low friction force level, even under external load conditions. The patented entry zone enhances travel accuracy by up to six times. Bosch Rexroth's design allows attachments to be mounted from both above and below the runner block, with metal-threaded lube fittings accessible from all sides. The end-face fastening thread facilitates easy attachment of components. This model boasts integrated all-around sealing for protection against contaminants and provides high torque load capacity. The B.RUNNER BLOCK CS KWD-025-FNS-C1-X-1 is capable of handling high rigidity requirements with just one runner block per rail due to its design that includes additional mounting screw holes at the center for improved stability under liftoff and side loading conditions. Its O-arrangement offers maximum system rigidity. This ball runner block is prelubricated at the factory for convenience and supports long-term lubrication spanning several years without requiring frequent maintenance. It can be used on all SN/SNO ball guide rails by Bosch Rexroth and delivers consistent performance with high load ratings in all four main loading directions.