This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Analysis of Quality Evaluation Methods for Self-Lubricating P/M Bearings
Annotation ability available
Sector:
Event:
SAE Brasil
Language:
English
Abstract
Self-lubricating P/M bearings were manufactured with different compacting force values. Installed on electric motors, and submitted to endurance tests, those with lower density (5.75 g/cm3) presented a bad behaviour, due to an insufficient lubrication caused by oil loss. Bearings with a density equal or superior to 6.15 g/cm3 presented a better behaviour. A research on quality evaluation tests for P/M materials was conducted, in order to define which were the best suited to characterize the behaviour of bearings with highest sensitivity, quickness and at lowest costs. Radial rupture force and oil permeability tests revealed the most adequate for the purpose.
Authors
Citation
Pallini, M., Alarcón, O., and Pagotto, S., "Analysis of Quality Evaluation Methods for Self-Lubricating P/M Bearings," SAE Technical Paper 921524, 1992, https://doi.org/10.4271/921524.Also In
References
- Arnold, Norbert A. “P/M Bearings” Metals Handbook 7 704 709 19 ASM 1984
- Joseph, D.D. Tao, L.N. “Lubrication of a Porous Bearing - Stokes' Solution” Powder Metallurgy Perspectives: Friction and Anti-friction Materials 211 228 MPIF 1970
- Koch, H.P. “Sinter-gleitager” Intern Communication R. Bosch GmbH ZWW 1986
- Morgan, V.T. “Bearing Materials by Powder Metallurgy” October 1977 11 1 11 16 The Metals Society - Powder Metallurgy Group Meeting
- “Standard DIN 30911” 1986
- “Standard ISO 4022” 1987
- Pease, Leander F. III “Inspection and Quality Control for P/M Materials” Metals Handbook 7 485 488 19 ASM 1984
- Rootare, Hillar M. “A Review of Mercury Porosimetry” Advanced Experimental Techniques in Powder Mertallurgy 225 252 Plenum Press 1970