Description of Spur Gear: From the perspective of the transmission requirements of simple equipment, spur gears are gears that can work without complex support structures. Their axial force-free characteristics simplify the bearing and box design of the equipment.

• Low installation requirements with no precise adjustment of axial positioning needed
• Ordinary deep groove ball bearings can meet support needs
• Simple maintenance with easy disassembly and replacement
• Low skill requirements for maintenance personnel
• Excellent compatibility with other transmission components
• Can easily form hybrid transmission systems with pulleys, sprockets, etc.

In simple equipment, spur gears are driven by a simple parallel shaft arrangement. The characteristic of no axial force reduces additional constraints on the bearings and the box, allowing for lighter gearbox structures. Only regular grease is required to maintain basic transmission function, reducing equipment maintenance complexity.

Commonly used in machinery with simple structures including:

• Transmission gear of manual hoists
• Speed reduction mechanism of small winches
• Internal transmission system of small household crushers