Life of Concentrated Contacts in the Mixed EHD and Boundary Film Regimes

reportActive / Technical Report | Accession Number: ADA216673 | Open PDF

Abstract:

This analytical and experimental program investigates the influence of surface finish, material and lubricant on rolling contact bearings operating in the low or marginal lubricant film regime. The investigation includes failure analysis of field failures encountered with Helicopter mast support and planetary gear transmission bearings, computer analysis of the above two bearing applications using SKF computer programs SHABERTH and PLANETSYS and testing of specimens made of M50 and 9310 steel using a geared roller tester at NAPC. Keywords Rolling contact fatigue Microspalling Transmission bearings Mixed EHD film regimes Surface roughness Bearing lubricants.

Author(s):
Mccool, John I.
Author Organization(s):
MRC BEARINGS-SKF AEROSPACE JAMESTOWN NY
Descriptive Note:
Final rept.
Pagination:
0157

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NAPC-PE-204C
Contract/Grant Number(s):
N00140-83-C-7149
Monitor Series:
204C, NAPC-PE
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.2.3_Manage Global Supplier Networks; JCA_4.2_Supply; JCA_6_Net Centric; JCA_6.1_Information Transport; JCA_6.4.1_Secure Information Exchange; JCA_4.6_Engineering; JCA_6.4_Information Assurance; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_1.2.3_Educating; JCA_1.2.7_Experimentation; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means
Modernization Areas:
Quantum Science and Computing
Communities of Interest:
Air Platforms
Descriptor(s):
*SPALLATION, *LUBRICATING FILMS, *ROLLER BEARINGS, SURFACES, HELICOPTERS, MATHEMATICAL ANALYSIS, COMPUTER APPLICATIONS, FATIGUE(MECHANICS), PLANETARY GEARS, MASTS, FRICTION, LUBRICANTS, ANTIFRICTION BEARINGS, BOUNDARY LAYER, TRANSMISSIONS(MECHANICAL), SURFACE ROUGHNESS, FAILURE
Field(s)/Group(s):
Lubricants and Hydraulic Fluids, Machinery and Tools, Mechanics
Keyword(s):
SHABERTH COMPUTER PROGRAM, PLANETSYS COMPUTER PROGRAM, STEEL 9310, STEEL M50
Report Date:
1989 Aug 01