Ball screws
New gradients allow the drivetrain to be optimized
Four new sizes for the most common ball screw drives: Designers can fine-tune drives and linear technology for high dynamics more precisely than before.
Rexroth is further expanding its BASA ball screw product portfolio with the four new sizes 8x5, 40x25, 40x30 and 50x30. With multi-start spindles and multi-start nuts, the load rating and service life increase. The new sizes expand the variation options for designers in applications such as machine tools.
Rexroth's BASA product portfolio includes solutions for driven spindles and nuts as well as a wide range of nuts with DIN and Rexroth connection dimensions. In most applications, machine manufacturers use preloaded nuts for backlash-free movements with high repeat accuracy. Rexroth offers both preloaded nuts ex works and variants that can be individually adjusted by the user.
The contact point between the raceway and balls has a significant influence on the running quality and load rating. When using double-threaded nuts and spindles, the number of balls is doubled for the same installation space, thus increasing the load capacity. This allows designers to choose a more compact design with smaller sizes for double-thread nuts compared to single-thread versions or to extend the service life when using the same size. The product portfolio includes multi-start spindles and nuts as standard. The company also quickly supplies order-specific versions with standardized or individual end machining.
The Linear Motion Designer (LMD) calculation tool simplifies the design and calculation of BASA ball screws. Designers then configure their variants using the online screw drive configurator. This guides users through the configurations and automatically performs a plausibility check if parameters are changed. Finally, the LMD generates the CAD data and makes it available for download. In a further step, users can switch to the eShop and call up the price and delivery time.
Rexroth supplies complete ball screws with machined ends and a wide range of nuts as well as individual screws and nuts.
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