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Profile Rail Guides Gain Precision Upgrade
Rodriguez enhances BRXH series with improved lubrication, sealing, and accuracy for reliable motion systems in automation and robotics applications.
www.rodriguez.de
Rodriguez now offers the BRXH series of profile rail guides in an optimized design.
Image: Rodriguez GmbH
Rodriguez has introduced an updated design of its BRXH profile rail guides, targeting higher process reliability and precision in mechanical engineering and robotics. The revision focuses on lubrication, sealing, and accuracy while maintaining compatibility with existing systems.
Context: Increasing demands in motion systems
Linear guide systems are critical components in industrial automation, robotics, and precision machinery, where reliability, repeatability, and contamination resistance directly affect process stability.
Rodriguez revised the BRXH series to address stricter requirements in these sectors. The update maintains existing load capacities and dimensions, enabling integration into established machine designs without structural modifications.
Enhanced lubrication for consistent performance
The updated guide carriages incorporate additional lubrication points within the recirculating ball system. This modification improves the distribution of lubricant across load-bearing elements, reducing uneven wear and supporting longer service intervals.
Systems are delivered pre-lubricated. For relubrication, an adapter enables controlled lubricant delivery from above, ensuring targeted supply to critical internal components.
New sealing system improves contamination resistance
The redesigned sealing concept introduces double lip seals at both the front and lateral sides of the carriage. This configuration enhances protection against particulate ingress, a key factor in maintaining consistent motion quality in harsh environments.
Optional sealing variants include non-abrasive seals, additional abrasive seals, and metal wipers, allowing adaptation to different operating conditions such as dusty or debris-intensive applications.
Higher precision becomes standard
A key change in the BRXH series is the shift in standard accuracy. The previous N class has been replaced by H class as the baseline, reducing tolerance deviations in height and width by approximately 50%.
This adjustment improves repeatability and alignment accuracy, particularly relevant in robotics and synchronized multi-axis systems. Improved parallelism ensures smoother operation when multiple guides are used together.
Accuracy class P remains available on request, while preload options are now limited to Z0, Z1, and Z3.
Additional design refinements
Further updates include an increase in ground carriage reference surfaces from two to three, contributing to improved mounting stability and alignment. Rail cover caps are available in plastic or optional brass, depending on durability requirements.
Retained features ensure compatibility
Core design characteristics remain unchanged, including the four-row ball configuration in an X arrangement with a 45° contact angle, enabling load absorption in all principal directions.
The system continues to offer multiple carriage variants, compatibility with existing coatings, optional metal cover tape, and rail lengths up to 3,900 mm. Interchangeability within defined precision and preload classes is preserved.
Conclusion: Incremental improvements for demanding applications
The BRXH update demonstrates a targeted approach to improving linear guide performance through internal design refinements rather than structural changes. By enhancing lubrication, sealing, and precision, Rodriguez addresses key operational challenges in industrial automation while ensuring continuity for existing machine platforms.
Edited by an industrial journalist, Lekshman Ramdas, with AI assistance.
www.rodriguez.com
Image: Rodriguez GmbH
Rodriguez has introduced an updated design of its BRXH profile rail guides, targeting higher process reliability and precision in mechanical engineering and robotics. The revision focuses on lubrication, sealing, and accuracy while maintaining compatibility with existing systems.
Context: Increasing demands in motion systems
Linear guide systems are critical components in industrial automation, robotics, and precision machinery, where reliability, repeatability, and contamination resistance directly affect process stability.
Rodriguez revised the BRXH series to address stricter requirements in these sectors. The update maintains existing load capacities and dimensions, enabling integration into established machine designs without structural modifications.
Enhanced lubrication for consistent performance
The updated guide carriages incorporate additional lubrication points within the recirculating ball system. This modification improves the distribution of lubricant across load-bearing elements, reducing uneven wear and supporting longer service intervals.
Systems are delivered pre-lubricated. For relubrication, an adapter enables controlled lubricant delivery from above, ensuring targeted supply to critical internal components.
New sealing system improves contamination resistance
The redesigned sealing concept introduces double lip seals at both the front and lateral sides of the carriage. This configuration enhances protection against particulate ingress, a key factor in maintaining consistent motion quality in harsh environments.
Optional sealing variants include non-abrasive seals, additional abrasive seals, and metal wipers, allowing adaptation to different operating conditions such as dusty or debris-intensive applications.
Higher precision becomes standard
A key change in the BRXH series is the shift in standard accuracy. The previous N class has been replaced by H class as the baseline, reducing tolerance deviations in height and width by approximately 50%.
This adjustment improves repeatability and alignment accuracy, particularly relevant in robotics and synchronized multi-axis systems. Improved parallelism ensures smoother operation when multiple guides are used together.
Accuracy class P remains available on request, while preload options are now limited to Z0, Z1, and Z3.
Additional design refinements
Further updates include an increase in ground carriage reference surfaces from two to three, contributing to improved mounting stability and alignment. Rail cover caps are available in plastic or optional brass, depending on durability requirements.
Retained features ensure compatibility
Core design characteristics remain unchanged, including the four-row ball configuration in an X arrangement with a 45° contact angle, enabling load absorption in all principal directions.
The system continues to offer multiple carriage variants, compatibility with existing coatings, optional metal cover tape, and rail lengths up to 3,900 mm. Interchangeability within defined precision and preload classes is preserved.
Conclusion: Incremental improvements for demanding applications
The BRXH update demonstrates a targeted approach to improving linear guide performance through internal design refinements rather than structural changes. By enhancing lubrication, sealing, and precision, Rodriguez addresses key operational challenges in industrial automation while ensuring continuity for existing machine platforms.
Edited by an industrial journalist, Lekshman Ramdas, with AI assistance.
www.rodriguez.com
