Rodriguez offers the BRXH series of profile rail guides in an optimized design. The update comprises three key points: an enhanced lubrication concept, a new sealing system, and greater precision. This makes processes even safer while maintaining system compatibility. With the modifications to its BRXH profile rail guides, Rodriguez is responding to the increased demands in mechanical engineering and automation. The basic technical data remains unchanged, while targeted optimization measures improve process reliability and ensure longer service life and reproducible precision.
More lubrication points and new sealing concept
The guide carriages now have additional lubrication points, which distribute the lubricant better and more evenly within the recirculating ball unit. The systems are still delivered pre-lubricated. When lubricating from above, an adapter ensures targeted distribution in the carriage. A central element of the redesign is the new sealing system. Double lip seals on the front and double lip seals on the sides are used as standard, providing effective protection against particles and contamination. Additional variants are available as options: non-abrasive seals, additional abrasive seals, and metal wipers.
Higher accuracy becomes standard
The previous standard accuracy N is no longer available. Instead, class H becomes the new standard. The tolerances for height and width have been reduced by around 50 percent compared to the previous N version. Accuracy class P will only be available on request in future. Class Z2 is no longer available for preload; Z0, Z1, and Z3 remain available. Specifically, this means higher repeat accuracy – particularly relevant in robotics and automation – and better parallelism, i.e., multiple guides run more smoothly in parallel.
Further design modifications
In addition, the number of ground carriage surfaces has been increased from two to three. Cover caps made of plastic or, optionally, brass are available for the rails.
Some of the series' proven features remain unchanged, including the design with four rows of balls arranged in an X with a 45° contact angle to accept loads in all main directions, coating options, interchangeability within precision and preload classes, and availability in individual lengths of up to 3,900 mm.
