Is Acrylic Piece of 25mm thickness strong enough for shaft walls

In summary, the conversation discusses the use of an acrylic sleeve as a shaft wall for a rotating shaft. It is mentioned that a 25mm thick acrylic piece may not be strong enough for a 15kg radial force. Alternatives such as plywood and using a ball or roller bearing are suggested for better temperature resistance and to reduce stress on the acrylic. The preference for transparency is also mentioned.
  • #1
malek340
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I am wandering if acrylic piece of 25mm thickness would be strong enough to be used as shaft walls that has 15kg radial force acting on it. If it's not, what material is the best to be used? For those who don't understand or want to know more, look at my picture.
 

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  • #2
What are you trying to do? Does it have to be transparent?
Your diagram suggests a rotating shaft held in place by an acrylic sleeve.
An inch thick piece of acrylic would easily support a 15kg shaft, but if the shaft spins at any speed, there will be frictional heating, which could cause trouble.
Inch thick acrylic is not as cheap as plywood, which would be even more robust and have better temperature resistance to boot.
 
  • #3
Yup. It's better if it's transparent. So the acrylic piece of 25mm thickness would do the job? As for the motor speed, it's not that high.
 
  • #4
At the risk of sounding dense, is there any reason to not mount a ball or roller bearing in the acrylic slab and run the shaft through that? You'd lose only a tiny fraction of your transparency, and guarantee no thermal or torsional stress upon the plastic.
 
  • #5


I would first need to know the specific properties and strength of the acrylic material being used. Acrylic can vary in strength depending on factors such as its composition and manufacturing process. Additionally, the design and construction of the shaft walls would also play a role in determining the overall strength and stability of the structure.

In general, a thickness of 25mm may not be sufficient to withstand a radial force of 15kg. It is important to consider the load-bearing capacity and structural integrity of the material in relation to the force being applied.

If acrylic is not suitable for this application, there are other materials that could potentially be used, such as steel or reinforced concrete. These materials have higher strength and load-bearing capabilities and may be more suitable for supporting a 15kg radial force.

Ultimately, the best material to use would depend on the specific requirements and design of the shaft walls, and it would be best to consult with a structural engineer to determine the most appropriate material for this application.
 

1. Is a 25mm thick acrylic piece strong enough for shaft walls?

It depends on the specific application and load requirements. Acrylic can be a strong and durable material, but it may not be suitable for all situations. It is important to consult with a structural engineer or refer to building codes for specific recommendations.

2. How does the strength of acrylic compare to other materials for shaft walls?

Acrylic is not as strong as materials like steel or concrete, but it can still be a viable option for certain applications. Its strength can also vary depending on the thickness and quality of the acrylic. In general, it is best to consult with a professional for specific comparisons.

3. What factors can affect the strength of acrylic in shaft walls?

The thickness and quality of the acrylic, as well as the design and construction of the shaft walls, can all impact the strength of the material. Environmental factors such as temperature and humidity can also affect the strength of acrylic over time.

4. Are there any additional measures that can be taken to increase the strength of acrylic in shaft walls?

Yes, reinforcing the acrylic with steel or other materials can help increase its strength for specific applications. It is important to consult with a professional and follow proper building codes when reinforcing acrylic for structural purposes.

5. What are some potential drawbacks of using acrylic for shaft walls?

Acrylic can be more prone to scratching and damage compared to other materials, which may affect its strength over time. It also tends to be more expensive than other options, and may not be suitable for all load requirements. Consulting with a professional can help determine if acrylic is the best choice for a specific project.

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