Can a Thin Walled Brass Bushing Handle High Shock Loads at Low Angular Velocity?

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A thin-walled brass bushing is suggested as a potential solution for handling high shock loads of up to 250,000 N at low angular velocity, with a maximum outer diameter of 30mm. The discussion emphasizes the importance of the shaft size, as it affects contact area, bending, and overall strength. Clarification is sought regarding the maximum RPM under load, available lubrication, and the frequency of shock loads. A needle bearing may be suitable for higher speeds but is not ideal for frequent large shocks. The conversation highlights the need for precise specifications to ensure effective performance.
parthbhatt
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I'm looking for a (needle?) bearing that can sustain shock loads of up to 2.5e5 N, at low angular velocity, but its outer diameter can't be greater than 30mm.

as ridiculous as it sounds, any suggestions?
 
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I would suggest something like a thin walled solid brass bushing with a steel shaft.

I assume your predicted shock loads are perpendicular to the axis of rotation.
A needle bearing might work OK at higher speeds but without many such big shocks.
The size of the shaft will be critical as it determines the contact area, shaft bending and strength. Use the biggest shaft OD possible.

“Low angular velocity” is a bit vague. What is the maximum RPM under load?
What lubrication is available?
How often does it receive a shock of that magnitude?
 
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