BALL RUNNER BLOCK CARBON STEEL KWD-025-BNS-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 CS KWD-025-BNS-C0-N-1 (R167129420) is a state-of-the-art ball runner block designed for linear motion applications requiring high precision and torsional moment load capacity. This runner block features a size N, with a steel CS body, and comes in the BNS format which denotes its width as wide, length as normal, and height as standard. It is classified under preload class C, indicating that it is preload-free, and accuracy class N for standard accuracy. The product does not include a ball chain but comes with initial lubrication and preservation to ensure longevity. The roller bearing grease used is Dynalub. Notably, the R167129420 has an overall length of . mm and boasts interchangeability with guide rails of every accuracy level. Designed to handle high torsional moments on rails, this runner block can sustain the same high load ratings in all four main directions of loading. Its construction allows for long-term lubrication over several years while maintaining excellent dynamic characteristics. The attachments on the ball runner block can be mounted from above or below, enhancing versatility. Furthermore, the Bosch Rexroth R167129420 features integrated all-around sealing for improved protection against contaminants and additional mounting screw holes at the center for increased rigidity under liftoff and side loading conditions. Its optimized entry-zone geometry coupled with a high number of balls reduces variation in elastic deflection, thereby maximizing system rigidity through a preloaded O-arrangement. This ball runner block is suitable for use on all BNS ball guide rails and offers a wide range of accessories including end-face fastening threads for all attachments. The lube connection is equipped with metal threads on all sides ensuring ease of maintenance. In summary, the Bosch Rexroth R167129420 ball runner block provides robust performance with very high torsional moment load capacity and resistance to torsion, making it an ideal choice for demanding linear motion applications where precision and durability are critical.