A New Proposal for Explicit Angle Calculation in Angular Contact Ball Bearing

Abstract

In order to optimize the mechanical behavior of high speed rotors, it is useful to know the load-displacement law of the angular-contact ball bearing. The relationship between preload, speed, and contact angle is studied and a new analytical approach is proposed, giving explicitly and with good precision the contact angle versus preload and rotational speed for the special case of elastically preloaded high speed angular-contact ball bearing.

Cutting torque and tangential cutting force coefficient identification from spindle motor current

“…The assumption that the tangential forces compensate the gyroscopic moment allows for a simplification of the free body diagram [15]. Thus, we get the system of forces represented in Fig.…”

“…11b). The assumptions made are that the bearing has a constant rotational speed around the X-axis, the motion is without vibrations, and no sliding motion is supposed to appear at points A and B [15].…”

“…The value of contact angles between the balls and the rings in such a design is a function of dynamic variables in operational conditions. Antoine et al [15] have developed a procedure for the explicit angle calculation in angular contact ball bearings.…”

General static load capacity in four contact point slewing bearings

“…There have been some previous publications where concepts relevant to the assessment of the static load-carrying capacity of four-contact-point slewing bearings have been examined [1][2][3][4][5]. All of the above papers propose a generalization of the equations obtained by Jones [6], in which the load distribution is worked out from the known external loads, taking account of the variation in contact angle with the loading conditions.…”

Research on Variable Preload Device for Spindle Bearing by Piezoelectric Actuators

“…Harris used the Hertz contact theory to calculate a more comprehensive model of static analysis model of ball bearing [2]. Antoine use raceway control theory to achieve static and dynamic calculation of bearing contact angle [3]. Young Kug Hwang and Choon Man Lee controlled bearing preload by electromagnet to complete variable preload under different working conditions [4].…”