Tectra Automation has introduced the new BSHP ball rail runner block from Rexroth which, by integrating its patented run-in zone and adding load-bearing balls, improves load capacities in the load zone, in turn doubling the nominal service life of the ball rail systems and increasing their travel accuracy.
Machine product quality has been improved as a result of these innovations and to ensure they cater for a broad spectrum of the market, the new runner blocks, which also fit on already installed profiled rails of the same sizes (sizes 15 to 65) without any restrictions, are available in all sizes, versions and accuracy classes.
“Its operation is relatively simple,” says Greg Calder, product manager – linear motion & assembly technologies. “The axis travels toward the blank with a high level of dynamic capability and the tool machines the product with high force. Pulsation is greatly minimised, with no change in the high precision of the travel movement – even when subjected to heavy loads. The accuracy of cutting machine tools, measuring machines and glass machining equipment increases, as does machining quality.”
Calder says that Rexroth has improved the dynamic load capacities by about 26% across all sizes and variants with static load capacities improving by as much as 50%. “The higher load capacities also promote the trend toward energy-efficient lightweight construction for new machine concepts,” he says. “This is attainable as the new runner blocks are designed in such a way that manufacturers can use smaller sizes than before without sacrificing performance. This saves weight and installation space.”
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