Topic
Slewing bearing
About: Slewing bearing is a research topic. Over the lifetime, 1498 publications have been published within this topic receiving 5309 citations.
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TL;DR: In this paper, a profile ring with a round groove located asymmetrically on the outside is used to make a large slewing ring at a single ring rolling operation and an experiment is carried out at an industrial ring rolling machine.
46 citations
TL;DR: In this article, the authors derived the general static load-carrying capacity of three row roller slewing bearings under axial load and tilting-moment, and provided an acceptance curve in the load space.
43 citations
TL;DR: This paper presents a method of testing the fatigue life using a small sample test and three fatigue life calculation methods have distinct advantages and can be mutually referenced to improve the accuracy of bearing life calculations.
40 citations
TL;DR: In this paper, the geometry and manufacturing procedures of large rolling slewing bearings are compared with those of standard rolling bearings, and a comparison of the results is made at the end.
38 citations
TL;DR: In this article, the authors proposed a nonlinear elastic model for the load distribution of a four contact-point slewing bearing considering the effect of the structure's elasticity on the increase in contact forces.
Abstract: This paper proposes a procedure,for obtaining the load distribution in a four contact-point slewing bearing considering the effect of the structure's elasticity. The uneven stiffness of the rings and the supporting structures creates a variation with respect to the results obtained with a rigid model. It is necessary to evaluate the effect of the elasticity on the increase in the contact forces in order to be able to design the slewing bearing and the structures involved in the connection. Depending on the shape of the structures, the contact force value obtained on the most loaded rolling element is different. The evaluation of this maximum force at extreme loads is essential to design the structures joined to the bearing rings. The new elastic model presented in this paper is highly nonlinear so iterative loops are needed in order to obtain a satisfactory solution. At the same time a finite element model (FEM) has been created for the global model, having also represented the rolling elements and their contact with the raceways. The results obtained using the FEM have been correlated with the results of the new procedure.
35 citations