Results 11 to 20 of about 1,468 (265)

Comparison of heat generation estimation methods for angular contact ball bearings

Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2018
The article reviews domestic and foreign methods of estimating heat generation in angular contact ball bearings. Models for general-purpose bearings and for aviation angular contact ball bearings are considered.
N. I. Petrov, Yu. L. Lavrentyev
doaj   +1 more source

Contact characteristics analysis of angular contact ball bearings with local defect

Vibroengineering Procedia, 2022
The contact angle and load distribution are important indicators for reflecting the operating condition of the angular contact ball bearing (ACBB). However, the raceway with local defect may cause serious diversification of contact angle and contact load.
Endian Xu, Lihua Yang, Bo Yu
openaire   +1 more source

Research on comprehensive stiffness characteristics of angular contact ball bearings under multi-factor coupling condition

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
In order to research the dynamic performance of angular contact ball bearings of high-speed motorized spindles in detail, based on Hertz contact theory and bearing quasi-static model, considering the influence of centrifugal force, gyroscope moment and ...
Chunli LEI, Pan CUI, Pengyao CAO, Kai LIU, Ruizhe SONG   +4 more
doaj   +1 more source

Analysis of thermo-mechanical coupling of high-speed angular-contact ball bearings

Advances in Mechanical Engineering, 2017
In view of the thermo-mechanical coupling effect that commonly exists in the loading zone of angular-contact ball bearings while the bearings are operated, several process parameters are analyzed, including coordination condition of thermal expansion ...
Zhenhuan Ye, Liqin Wang, Guanci Chen, Di Tang   +3 more
doaj   +1 more source

Characteristics of Duplex Angular Contact Ball Bearing with Combined External Loads and Angular Misalignment

Applied Sciences, 2020
As a kind of common phenomenon in practical engineering, misalignment error considerably changes the working performance of bearing. However, it has rarely attracted attention in the study of duplex angular contact ball bearings (DACBBs). To evaluate the
Tengfei Xu, Lihua Yang, Kai Wang
doaj   +1 more source

Study on Temperature Rise Characteristics of Grease Lubricated Thrust Angular Contact Ball Bearings Under Complex Working Conditions

Jixie chuandong, 2022
The temperature rise characteristics of grease lubricated angular contact ball bearings under complex working conditions have an important influence on the safe operation of bearings.
Shijie Wang, Pengchang Jiang, Feng Liu, Guixiu Luo, Zhanli Zhang   +4 more
doaj  

Analytical Method for Predicting Wear Life of Angular Contact Ball Bearings Under Variable Loading Based on Mixed Lubrication

Lubricants
In aerospace technology, angular contact ball bearings are required to exhibit extremely high operational precision, necessitating real-time monitoring of their wear status to conduct pre-failure analysis.
Xiaoyan Mu, Gong Cheng, Shaojiang Dong, Liang Yi, Hongliang Liu   +4 more
doaj   +1 more source

Numerical simulation and experimental testing of dynamic stiffness of angular contact ball bearing

Advances in Mechanical Engineering, 2018
Angular contact ball bearings are widely used in the multiple rotor system, such as gear box, machine tool spindle, and aero-engine rotors. The support stiffness is very important to the vibration of shafting.
Haitao Luo, Jia Fu, Changshuai Yu, Guangming Liu, Wei Wang, Peng Wang   +5 more
doaj   +1 more source

Peroxidasin enables melanoma immune escape by inhibiting natural killer cell cytotoxicity

Molecular Oncology, EarlyView.
Peroxidasin (PXDN) is secreted by melanoma cells and binds the NK cell receptor NKG2D, thereby suppressing NK cell activation and cytotoxicity. PXDN depletion restores NKG2D signaling and enables effective NK cell–mediated melanoma killing. These findings identify PXDN as a previously unrecognized immune evasion factor and a potential target to improve
Hsu‐Min Sung, David Bickel, Lena C. M. Krause, Daria Ezeriņa, Christian Ickes, Julian Wojtachnia, Christine S. Gibhardt, Magdalena Shumanska, Khadija Wahni, Andrea Paluschkiwitz, Julia Malo Pueyo, Ekaterina Baranova, Wim Vranken, Hedwig Stanisz, Ioana Stejerean‐Todoran, Michael P. Schön, Joris Messens, Ivan Bogeski   +17 more
wiley   +1 more source

Analysing the significance of small conformational changes and low occupancy states in serial crystallographic data

FEBS Open Bio, EarlyView.
This protocol paper outlines methods to establish the success of a time‐resolved serial crystallographic experiment, by means of statistical analysis of timepoint data in reciprocal space and models in real space. We show how to amplify the signal from excited states to visualise structural changes in successful experiments.
Jake Hill, Yelyzaveta Pulnova, Elke De Zitter, Helen M. Ginn, Briony A. Yorke   +4 more
wiley   +1 more source