Apr 8, 2020 Viewed: 643 Tag: Gear Machining  

What are the advantages of plastic gears compared to metal gears?

What are the advantages of plastic gears compared to metal gears?

Compared with metal gears, plastic gears have the advantages of light weight, low working noise, no wear resistance, no need for lubrication, more complicated shapes and low mass production costs. At the same time, the inherent design freedom of plastic molding ensures more efficient Gear manufacturing. It has better fatigue resistance, high strength and high wear resistance than non-crystalline plastics.

Plastic gear is also an important material to meet the requirements of low-quiet operation, which requires the emergence of materials with high precision, new tooth shape and excellent lubricity or flexibility. Plastic gears generally do not require secondary processing, so compared to stamping parts and machined metal gears, the cost is guaranteed to be reduced by 50% to 90%. Plastic gears are lighter and more inert than metal gears, and can be used in environments where metal gears are prone to corrosion and degradation, such as the control of water meters and chemical equipment.

Tensioner is a tensioning device with drive

When the center distance of the belt cannot be adjusted, a tensioner can be used to tension the belt. The tensioner is generally arranged on the inside of the loose edge, so that the belt is only bent in one direction; at the same time, in order to ensure that the angle of the small pulley does not reduce too much, the tensioner should be installed as close as possible to the large pulley. The built-in automatic tensioner assembly is an ultra-compact design that combines an automatic tensioner and a pulley.

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