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Article | January 15, 2014
B&R: Hollow shaft angular gearbox
Designed for flange sizes 60 to 142 mm, B&R’s 8GA75 premium-grade angular planetary gearbox features a hollow shaft, making it possible to feed cables, fluid lines, and material strands through the drive axis.
The gearboxes are also available with output shaft flanges on both ends. This opens up additional design possibilities, such as drives with symmetrical load distribution for conveyor applications. It is also easy to connect external encoders to provide high-precision position measurements for controlling braking systems. The gearboxes are also optionally available with only one output side.
The 8GA75 hollow shaft gearbox features low backlash and high torsional rigidity. This permits high positioning precision in highly-dynamic servo applications. Upon request, B&R can deliver these gearboxes with a servo motor preinstalled.
The hollow shaft differentiates these new gearboxes from the 8GA60 series, which features a solid shaft. The hollow and solid shaft models have identical performance data and dimensions.
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