Assembly Exercise Spur Gear

Assembly Exercise Spur Gear .

Technical Description of Assembly Exercise: Spur Gear           

Gears transmit rotational movements. They adapt the torques and speeds of a consumer drive according to demand. The spur gear unit with helical gear wheels. The gear is single-stage, and has a fixed transmission ratio (fixed gear unit). It is a standalone gear unit, i.e. a self-contained transmission in its own gear case. Self-contained gear units are usually arranged between the motor and the machine, or are used as installation kits in machines. By contrast, open-running gear wheel pairs forming part of a machine are termed non-self-contained gears. Helical gear wheels run more smoothly and quietly than spur toothed gears because the gear teeth intermesh gradually and multiple teeth are engaged. They are suitable for higher speeds, and can withstand greater loading than comparable spur toothed gears.

Specification of Assembly Exercise: Spur Gear

  • Assembly exercise for engineering training
  • Disassembled spur gear with set of small parts and 4 assembly jigs, housed in a sturdy metal case
  • Helical spur gear wheels
  • Gear unit consisting of input housing, pedestal housing, input and output shafts, input gear and output pinion, as well as bearings
  • The kit forms part of the GUNT assembly, maintenance and repair practice line

Technical Data of Assembly Exercise: Spur Gear

Gear unit dimensions without shaft couplings

  • LxWxH: 160x135x175mm

Transmission ratio

  • Pinion: number of teeth: z=24, real pitch
  • Module: m=1mm
  • Gear wheel: number of teeth: z=68, real pitch
  • Module: m=1mm
  • Transmission ratio: i=2,83
  • Max. Output torque: 54Nm at 494min-1


  • Housing: grey cast iron
  • Shafts: heat treated steel
  • Spur gears: case-hardened alloy steel

Shaft couplings

  • Drive: DxL: 16x40mm
  • Power take-off: DxL: 20x40mm

Dimensions and Weight of Assembly Exercise: Spur Gear


  • LxWxH: 600x450x180mm (case)
  • Weight: approx. 18kg

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