scholarly journals Discussion: “Dynamic Capacity of Rolling Bearings” (Lundberg, Gustaf, and Palmgren, Arvid, 1949, ASME J. Appl. Mech., 16, pp. 165–172)

1949 ◽  
Vol 16 (4) ◽  
pp. 416-417
Author(s):  
A. R. Spicacci
Keyword(s):  
Rolling Bearings ◽  
Dynamic Capacity

Dynamic Capacity of Rolling Bearings

1949 ◽  
Vol 16 (2) ◽  
pp. 165-172
Author(s):  
Gustaf Lundberg ◽  
Arvid Palmgren
Keyword(s):  
Statistical Theory ◽  
Bearing Capacity ◽  
Fatigue Failure ◽  
Experimental Results ◽  
Rolling Bearings ◽  
Dynamic Capacity ◽  
Comprehensive Theory ◽  
Set Up ◽  
Fatigue Failures

Abstract This paper is a condensation of a comprehensive theory for fatigue failure in rolling bearings. The character of bearing fatigue failures is analyzed, and the effect of the volume of stressed material is assessed by means of modification of Weibull’s statistical theory of failure. The variables affecting bearing capacity are examined, and general formulas are set up relating the variables to the bearing capacity. Unknown exponents in the formulas are evaluated by means of extensive tests, and the final formulas are compared to experimental results.

Rating Life of a Linear Motion Assembly

1970 ◽  
Vol 92 (1) ◽  
pp. 34-38
Author(s):  
J. P. Hyer ◽  
T. A. Harris
Keyword(s):  
Fatigue Life ◽  
Rolling Bearing ◽  
Linear Motion ◽  
Rolling Bearings ◽  
Dynamic Capacity ◽  
Load Carrying ◽  
Analytical Development ◽  
Conventional Rolling

The linear motion assembly is a type of rolling bearing used to support and guide a translating member along a round shaftway. The load-carrying adequacy of this bearing for a given application is evaluated in the same way as for conventional rolling bearings by determining a statistical fatigue life. This paper presents an analytical development of the equations for dynamic capacity from which fatigue life can be calculated. Contact deflection and the effects of preload are also examined.

Simplification of Dynamic Capacity and Fatigue Life Estimations for Oscillating Rolling Bearings

2003 ◽  
Vol 125 (4) ◽  
pp. 868-870 ◽  
Author(s):  
John H. Rumbarger
Keyword(s):  
Fatigue Life ◽  
Load Rating ◽  
Critical Amplitude ◽  
Rolling Bearings ◽  
Text Book ◽  
Dynamic Capacity ◽  
Contact Areas ◽  
Life Data ◽  
Discrete Contact ◽  
Rolling Elements

A Dynamic capacity for oscillating rolling bearings was published in 1968 and correlated with available laboratory fatigue life data. That development of the Dynamic Capacity extended the classic fatigue life theory of Lundberg and Palmgren (1947 and 1952) to oscillating rolling bearings. The calculation of the Dynamic Capacity is simplified as a modification of present ABMA and ISO load rating and life standards for continuously rotating rolling bearings. The simplified formulas agree with the Harris, 1991, text book formulation for oscillation amplitudes (greater than the critical amplitude) which cause an overlapping of stressed contact areas by adjacent rolling elements. Oscillation amplitudes less than the critical amplitude result in separate, discrete contact areas on each raceway. Use of the Harris equations will lead to overestimation of the fatigue for oscillation amplitudes which are less than the critical amplitude.

Efficiency of application of the phase-chronometric method and neurodiagnostics for monitoring the degradation of rolling bearings during operation

2020 ◽  
pp. 43-50
Author(s):  
A.S. Komshin ◽  
K.G. Potapov ◽  
V.I. Pronyakin ◽  
A.B. Syritskii
Keyword(s):  
Life Cycle ◽  
Wavelet Analysis ◽  
Metrological Support ◽  
Rolling Bearing ◽  
Technical Condition ◽  
Measurement Information ◽  
Rolling Bearings ◽  
Vibration Diagnostics ◽  
Bearing Life ◽  
Alternative Approach

The paper presents an alternative approach to metrological support and assessment of the technical condition of rolling bearings in operation. The analysis of existing approaches, including methods of vibration diagnostics, envelope analysis, wavelet analysis, etc. Considers the possibility of applying a phase-chronometric method for support on the basis of neurodiagnostics bearing life cycle on the basis of the unified format of measurement information. The possibility of diagnosing a rolling bearing when analyzing measurement information from the shaft and separator was evaluated.

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