The illustration shows the assembled gear and the GUNT Media Center on a tablet (not included)


  • broad scope of learning with interdisciplinary problems
  • part of the GUNT-Practice Line for assembly, maintenance and repair
  • multimedia instructional materials on USB stick and online in GUNT Media Center: 3D PDF, DXF files, STEP files, videos

Planetary gears transmit and often increase torque while reducing speed at the same time. They are often used in wind power plants and as automatic transmission in automobiles.

The MT 122 unit is a single-stage planetary gear unit with three planet gears. The sun wheel is driven. The hollow wheel (also known as ring gear) is fixed.

The MT 122 kit is part of the GUNT-Practice Line for assembly, maintenance and repair, which has been designed for technical colleges and company training centres. The close link between theory and practice-based learning content is evident. The assembly and disassembly processes can be completed easily within standard lesson times. Only basic tools are required for assembly, all of which are supplied with the kit. The fit seatings of the gear unit are designed to allow the complete assembly process to be performed by hand.

The contemporary multimedia instructional materials provide extensive technical information that provides the basis for lesson design. The core element of the teaching materials is a complete set of drawings as files with lists of parts, single-part drawings, exploded views, assembly drawings and 3D drawings. All drawings are to standard and are dimensioned in accordance with production requirements. The set of drawings consists of DXF files, STEP files and PDF files. Assembly videos are also useful features. The files are also available free of charge online in the GUNT Media Center.

The disassembled planetary gear with set of small parts and 4 assembly jigs are delivered in a storage system with foam inlay. The transport roller MT 120.02 or the trolley MT 120.01 are suitable for convenient transport of the kit.

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