Planetary gearbox, straight teeth, Ø 80 mm, reduction 5:1, 7 arc minutes, 110 N.m GBX080005K

Precise motion transmission in a compact housing

This straight-tooth planetary gearbox is a key component for automation systems requiring high stiffness and precision while minimizing overall dimensions. Designed to integrate with servo drives and stepper motors, this unit offers a gear ratio of 5:1, enabling optimal matching of rotational speed to load torque in applications demanding higher driving force. With an outer diameter of 80 mm, installation is feasible even in tight machine spaces without compromising performance.

Particular attention should be paid to the parameters determining long-term operational stability. The gearbox delivers a continuous torque of 110 N.m, making it suitable for medium-duty applications in production lines or positioning systems. A critical aspect for precision applications is the low angular backlash (backlash) of less than 7 arc minutes. This result minimizes positional error during direction reversal—the mechanism responds instantly without unnecessary "play" or delay, which is critical in material processing or precise component assembly.

Applications and Structural Benefits

The straight-tooth design (straight teeth) combined with the planetary configuration ensures uniform force distribution among the gears. This translates to reduced component wear and quieter operation compared to traditional worm gearboxes. The compact GBX-type construction allows direct coupling with Lexium motors or other standard drives, eliminating the need for additional adapters or intermediate couplings, thereby simplifying installation and reducing potential failure points.

For installers and service technicians, the following features facilitate operation:

• High torsional stiffness – the gearbox effectively transmits torque without significant deformation, ensuring repeatable positioning.
• Universal mounting – standard dimensions streamline replacement or modernization of existing production lines.
• Overload resistance – the robust construction accommodates short-term peak loads exceeding the nominal 110 N.m (up to 176 N.m according to manufacturer data), providing a safety margin during sudden machine stops.

Key technical specifications can be quickly verified by reviewing the following values: the gearbox has an outer diameter of 80 mm and a gear ratio of exactly 5:1. Angular backlash does not exceed 7 arc minutes, guaranteeing high positioning precision. Maximum peak torque reaches up to 176 N.m (depending on conditions), while continuous output torque is 110 N.m. These parameters make it an ideal choice for Lexium servo drives and positioning systems.

Compatibility and Operating Conditions

As a mechanical accessory dedicated to Schneider Electric systems (GBX/Lexium series), this model is engineered to fully leverage the capabilities of the brand's controllers and motors. It is not a standard electrical spare part but an integral component of the drive system that enhances its functionality. Installation requires standard screw tools and adherence to alignment principles for the input and output shafts—even minor misalignments can affect gearbox lifespan and operational noise levels.

Thanks to the use of high-strength materials and precise gear machining, this unit performs reliably in industrial environments with varying temperature and humidity conditions, provided these are not extreme (e.g., direct contact with aggressive chemicals). Choosing this model represents a decision to optimize space while maintaining full control over the motion of the machine's actuating element.