Bosch Rexroth High Precision Ball Runner Block

Description

The Bosch Rexroth R201189330 is a high-performance ball runner block from the KWD series, engineered for precision linear guidance systems. This size 20 block features a narrow, standard length steel body (SNS format) and is designed for applications demanding smooth motion and high accuracy. With its high accuracy class (H) and zero preload (C0), it is perfectly suited for machine tools, measuring equipment, and automation technology. Order now from PLC2Day for expert support and fast delivery.

Specifications

• Manufacturer: Bosch Rexroth
• Part Number (MNR): R201189330
• Model: KWD-020-SNS-C0-H-1
• Series: Ball Rail Systems BSHP
• Size: 20
• Format: SNS (Steel, Narrow, Standard Length)
• Preload Class: C0 (Zero Preload)
• Accuracy Class: H (High)
• Sealing: Standard Seal

Label Info

• MNR: R201189330
• Description: B.RUNNER BLOCK NR

Application

This ball runner block is ideal for use in industrial automation, robotics, CNC machinery, and high-precision handling systems where reliable and accurate linear motion is critical.

Country of Origin

Made in Romania.

CO2 Impact

Opting for this component helps save approximately 0.6 kg of CO2 compared to new production, contributing to a more sustainable industrial environment.

Availability

This item is in stock and ready for immediate dispatch.

FAQ

This KWD-020-SNS-C0-H-1 block is designed for use with Bosch Rexroth size 20 ball guide rails. It is crucial to match the runner block size to the rail size for proper function and accuracy.

The 'C0' preload class indicates zero preload. This means there is no internal force applied between the balls and the raceways when the block is mounted. This configuration is ideal for applications requiring very low friction and smooth movement, at the cost of slightly lower rigidity compared to preloaded blocks.

Rexroth runner blocks are typically shipped with an initial preservation oil. For long-term operation, it must be lubricated according to the application's speed, load, and environmental conditions. Use a high-quality lithium-based grease or a suitable oil compatible with linear motion systems. Refer to the Bosch Rexroth documentation for specific lubricant recommendations and maintenance intervals.

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Last Update: Friday, March 13, 2026