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Linear module hits high speeds over long distances

13 November, 2011

Bosch Rexroth has developed a linear module with a low dead mass and a fast belt drive, which can achieve high speeds over long distances. The Omega module can accelerate at up to 50m/s² and reach speeds of 5m/s, reducing cycle times for long movements.

The module’s belt drive is fixed to both ends of the main body and looped around the drive shaft in the shape of the Greek letter, Ω. This configuration reduces the module`s dead weight compared to ballscrew assemblies, making it highly dynamic. By guiding the module`s table part over ball rail systems, it is said to offer high rigidity for precise movements.

Because the drive is stationary, the linear system can be set up in any position and used as a vertical axis. A pneumatic clamp maintains the position at standstill as well as clamping hanging loads.

The single-axis system has mechanical and electric interfaces for Rexroth’s modular EasyHandling system. Even in multi-axis systems, installation is said to be quick and easy and does not require calibration.

The modules come in three widths (55, 85 or 120mm) and in lengths up to 5.5m. Several table parts with their own drives can operate independently of each other. In the largest size, the mechanics can handle input torques up to 154Nm.

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