Bearing Surface Requirements (Waviness) for Driveline Shafts

Paper #:
  • 2011-01-0228

Published:
  • 2011-04-12
Citation:
Konstantino, A. and Levine, M., "Bearing Surface Requirements (Waviness) for Driveline Shafts," SAE Int. J. Mater. Manuf. 4(1):352-358, 2011, https://doi.org/10.4271/2011-01-0228.
Pages:
7
Abstract:
This paper summarizes the Fast Fourier Transform (FFT) methodology, special equipment, set-up and testing that is recommended to properly characterize the surface of bearing journals that will not result in objectionable noise or vibration. Traditional surface profiles and finish callouts do not capture some of the key characteristics for addressing what is often the customer's greatest complaint, noise. Noise can vary based on the sensitivity of the vehicle but understanding how to accurately describe (design, test, and measure) a surface for a given vehicle can result in an optimized design and reduce process time during manufacturing. Furthermore, this paper will recommend techniques for determining the proper limits of the FFT callouts.
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