Bosch Rexroth R163221420 Roller Guide Linear Ball Bearing Slide

Description:

The Bosch Rexroth R163221420 Roller Guide Linear Ball Bearing Slide is a size 25 aluminum ball runner block designed for Bosch Rexroth profiled linear guide rail systems. Engineered with a slim-width, standard-height, and normal-length configuration, it delivers smooth, low-friction linear motion, high positioning accuracy, and reduced weight while maintaining excellent load capacity. Commonly installed in CNC machine tools, industrial automation equipment, robotics, semiconductor manufacturing systems, packaging machinery, and precision handling equipment, this runner block is used by maintenance teams, OEM machine builders, and system integrators for equipment repairs, retrofits, and replacement of worn linear guide carriages. It features standard accuracy, low preload, factory lubrication, and compatibility with Bosch Rexroth size 25 SNS guide rails.

Applications:

The Bosch Rexroth R163221420 linear ball runner block is widely used in CNC machining centers, industrial robots, automated assembly systems, semiconductor production equipment, packaging and labeling machinery, optical inspection systems, medical equipment, and precision material handling applications requiring accurate, smooth, and reliable linear motion on 25 mm profiled guide rails.

Technical Specifications:

• Manufacturer: Bosch Rexroth
• Part Number: R163221420
• Product Type: Roller Guide Linear Ball Bearing Slide (Ball Runner Block)
• Series: KWD-025-SNS-C1-N-1
• Nominal Size: 25 mm
• Guide Type: Ball Rail System
• Block Style: SNS (Slim Width, Normal Length, Standard Height)
• Material: Aluminum
• Accuracy Class: N (Standard)
• Preload Class: C1 (Low Preload)
• Ball Chain: Without Ball Chain
• Seal Type: Standard (SS)
• Block Width: 48 mm
• Block Length: 86.2 mm
• Overall Height: 36 mm
• Block Body Height: 29.9 mm
• Mounting Hole Thread: M6
• Mounting Hole Spacing: 35 × 35 mm
• Dynamic Load Rating: 28.6 kN
• Static Load Rating: 35.9 kN
• Maximum Linear Speed: 5 m/s
• Maximum Acceleration: 500 m/s²
• Friction Coefficient: 0.002–0.003
• Operating Temperature: −10°C to +80°C (up to +100°C for short periods)
• Factory Pre-lubricated with Dynalub 510 Grease
• Compatible with Bosch Rexroth Size 25 SNS Ball Guide Rails

Common Replacements:

• Bosch Rexroth R162221420
• Bosch Rexroth R165121420
• Bosch Rexroth R163229420