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The use of plastic gearing has grown as designers become more aware of its advantages and restrictions. These gears can be made by hobbing, stamping, or injection moulding for high-volume runs. The following are some major advantages of using plastic in the manufacture of gearing:

  • due to the material's decreased density, it has a lower weight and inertia.
  • due to the material's flexibility, and the capacity to absorb stress and vibration.
  • decreased noise
  • hệ số ma sát thấp
  • Usually self-lubricating.
  • capable of being used in sticky situations including in kitchens.

Consider all of your choices: Plastic gears

Include any environmental factors that are relevant for the application as you specify the speed reducer's operating conditions. then decide on the reducer's kind.

Although a single-stage spur has good capacity and efficiency, it cannot accomplish significant speed decreases. To decrease tooling, designers frequently choose multiple-stage reducers that use the same gears in each level. This method results in all earlier stages being enlarged because the last step has the maximum torque. A multiple-stage reducer's size can be reduced by dividing it into various pathways, as in planetary designs.

Plastic nylon gear:

Acetal is often utilized for moulded gearing while nylon is used for machined gearing in most applications. Acetal is moisture-resistant, dimensionally stable, and resistant to most chemicals. When under heavy loads, it does necessitate continuous lubrication.

Due to its tendency to change shape in reaction to changes in temperature and humidity, nylon is less dimensionally stable. The fact that nylon often self-lubricates makes it advantageous for use in gearing. The possibility of voids in the raw material is always a worry when utilizing acetal for gearing. When utilizing cast nylon, this is not a problem.

Plastic CFRP gear

Different applications are well suited for the different plastic varieties. Ink-jet printers, refrigerator ice dispensers, paper shredders, and the majority of home-use power equipment all use moulded acetal gears. Typically, this material is chosen for these applications because it is affordable to mould thousands of pieces of it and because it is resilient to most natural conditions.

Usually, applications that manage more torque and power employ machined nylon gears. Conveyor systems, packaging machinery, and industrial automation are just a few examples of nylon gearing's typical applications. Nylon is frequently used as a gear material to lessen vibration or noise produced by a metal gear train.

Another option for a failsafe in a complicated drivetrain is to use nylon gears. By incorporating a sacrificial thiết bị nylon in the system, the designer can prevent harm to the rest of the drive even if they are aware that the mechanism could fail catastrophically when employed as a failsafe. The plastic gear will be the first part to break down when the system is subjected to a peak load that is greater than that anticipated during the design. This may prevent the death of a nearby person or save expensive equipment worth thousands of dollars.

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