A new cylindrical brass bearing sleeve for a pump shaft is found to be a few millimetres too long for the housing and needs to be adjusted to the correct length. Which will be the best method to use to reduce the length of the sleeve to the correct dimension?
A. Grind off the excess on a pedestal grinder for quickness
B. Cut off the excess with a mechanical hacksaw
C. Remove the excess length using the ship's lathe
D. Manually hacksaw off the excess and dress the end with a file
E. Saya Tidak Tahu.
Answer (2)
The best method to reduce the length of the sleeve is to use a ship's lathe due to its precision, quality of finish, and control in the cutting process. Other methods, like grinding or using a hacksaw, might lead to uneven cuts and rough edges. Overall, using a lathe ensures a professional outcome.
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The best method to reduce the length of a cylindrical brass bearing sleeve to the correct dimension would be option (C): Remove the excess length using the ship's lathe.
Here’s why using a lathe is the most appropriate method:
Precision : A lathe allows for precise control over the dimensions. You can set specific measurements and remove exactly the amount of material needed to reach the desired length, ensuring that the sleeve fits perfectly.
Surface Finish : Using a lathe provides a smooth and clean finish, which is important for components like bearing sleeves that need to fit into housings and work efficiently with other mechanical parts.
Uniformity : A lathe ensures that the cut is uniform around the entire circumference of the sleeve, maintaining the structural integrity and concentricity of the part.
Versatility : Lathes are versatile tools that can be used for various materials and operations, making them ideal for precision jobs like resizing a brass sleeve.
Time Efficiency : Though setting up a lathe might take a little more time than a quick grind, the precision and finish achieved make it worth the effort, especially for parts that require tight tolerances.
While other methods, like using a pedestal grinder or a hacksaw, might achieve the reduction in length, they lack the precision, control, and quality of finish provided by a lathe, particularly for critical engineering components.
