The unit is a spur gear unit with helicalgear wheels. The gear is single-stage and has a fixed transmission ratio (fixedgear unit). Helically cut gear wheels run more smoothly and quietly thanstraight-toothed gears because the gear teeth intermesh gradually and multipleteeth are engaged. They are suitable for higher speeds, and can withstandgreater loading than comparable straight-toothed gears.
The kit is part of Line for assembly,maintenance and repair, which has been designed for technical colleges andcompany training centres. The close link between theory and practice-basedlearning content is evident. The assembly and disassembly processes can becompleted easily within standard lesson times. Only basic tools are requiredfor assembly, all of which are supplied with the kit. The fit seatings of thegear unit are designed to allow the complete assembly process to be performedby hand.
The contemporary multimedia instructionalmaterials provide extensive technical information as base for lesson design.The core element of the teaching materials is a complete set of drawings asfiles with lists of parts, single-part drawings,