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

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SUMMARY

A thin-walled solid brass bushing is recommended for handling shock loads of up to 250,000 N at low angular velocities, with an outer diameter constraint of 30mm. The discussion emphasizes the importance of using a steel shaft to maximize contact area and strength, as well as the critical nature of shaft diameter in relation to bending and load distribution. Clarification on maximum RPM under load and lubrication availability is essential for optimizing performance and longevity.

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  • Understanding of material properties, specifically brass and steel
  • Knowledge of load-bearing mechanics and shock load implications
  • Familiarity with bearing types, particularly needle bearings
  • Basic principles of lubrication and its effects on bearing performance
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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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