Bosch Rexroth R163221420 Roller Guide Linear Ball Bearing Slide

The Bosch Rexroth R163221420 Roller Guide Linear Ball Bearing Slide is a size 25 aluminum ball runner block for Bosch Rexroth profiled SNS rails, delivering a slim-width, normal-length block with smooth, low-friction motion and high positioning accuracy for demanding automation tasks. It is compatible with Bosch Rexroth Size 25 SNS Ball Guide Rails, featuring a block width of 48 mm, a block length of 86.2 mm, an overall height of 36 mm, and a block body height of 29.9 mm, with M6 mounting holes at 35 × 35 mm spacing and standard SS seals. Key ratings include a dynamic load of 28.6 kN, a static load of 35.9 kN, a maximum linear speed of 5 m/s, and a maximum acceleration of 500 m/s², along with a friction coefficient of 0.002–0.003. The unit comes factory pre-lubricated with Dynalub 510 grease and offers N accuracy with C1 (low) preload, built for enduring performance in continuous movement. Applications span CNC machine tools, industrial robotics, automated assembly systems, semiconductor production equipment, packaging and labeling machinery, optical inspection systems, medical equipment, and precision material handling, making it well-suited for CNC centers and other high-precision setups in automation equipment. It is intended for use by maintenance teams, OEM machine builders, and system integrators for repairs, retrofits, and replacement of worn carriages. Part number R163221420, in the KWD-025-SNS-C1-N-1 series, is compatible with related replacements such as R162221420, R165121420, and R163229420.