Results 41 to 50 of about 773 (166)

Analysis of Skidding Characteristics of Solid-Lubricated Angular Contact Ball Bearings During Acceleration

Lubricants
Solid-lubricated rolling bearings are widely used in the aerospace field and are key components to support spacecraft rotors. During the start-up of the engine, the sharp acceleration may cause bearing skidding, resulting in damage of the solid ...
Shijie Zhang, Yuhao Zhao, Jing Wei, Yanyang Zi   +3 more
doaj   +1 more source

Thermal Performances Prediction Analysis of High Speed Feed Shaft Bearings Under Actual Working Condition

IEEE Access, 2019
High-speed machining is a key technology for greatly improving productivity and reducing production costs. Angular contact ball bearing is the key component of ball screw feed system.
Zhenjun Li, Chunyu Zhao, Zechen Lu, Fangchen Liu   +3 more
doaj   +1 more source

Thermal-Tribological Synergy in PTFE-Based Self-Lubricating Retainers for Ball Bearings Under Oil-Depleted Conditions

Lubricants
To investigate the temperature rise characteristics and tribological performance of angular contact ball bearings equipped with polymer-based self-lubricating retainers under oil-depleted conditions.
Zhining Jia, Caizhe Hao
doaj   +1 more source

Dynamic Characteristic Analysis of Angular Contact Ball Bearings with Two-Piece Inner Rings in Aero-Engine Main Shafts Under Unsteady-State Conditions

Lubricants
The dynamic interactions among the internal components of aero-engine main shaft bearings under unsteady-state conditions are intricate, involving clearance collisions, contact, friction, and lubrication.
Haisheng Yang, Qiang Liu, Si’er Deng
doaj   +1 more source

Study on the Wear Characteristics of Angular Contact Ball Bearings

Academic Journal of Science and Technology
For the wear of rolling bearings, this paper establishes a wear model of angular contact ball bearings based on the proposed static mechanics of rolling bearings, kinematics of rolling bearings and Archard's wear theory, studies the wear of bearings, and analyses the effects of rotational speed, load and structural parameters on the wear of bearings ...
Mengjiao Lv, Kun Ni, Ruigang Lu
openaire   +1 more source

Analysis on Cage Dynamic Characteristic of Angular Contact Ball Bearing During Deceleration

Jixie chuandong, 2019
The deceleration process generally exists in the feed system of CNC machine, and the speed change of the process has a great influence on the dynamic performance of angular contact ball bearing, which has always been little noticed by scholars at home ...
Wenbing Tu, Haibin He, Leping Liu, Ya Luo   +3 more
doaj  

NONLINEAR DYNAMICS OF A ROTOR WITH CANTILEVERED DISK RESTING ON ANGULAR CONTACT BALL BEARINGS [PDF]

Avtomobilʹnyj Transport (Harʹkov), 2016
The mathematical model of nonlinear oscillations of the rotor resting on angular contact ball bearings is developed. The disc is fixed on the console end of the shaft. The deflection of the shaft, and the elastic deformation of the bearings have the same
S. Filipkovskyi
doaj  

Analysis and Experimental Study on Bearing Temperature Rise of High Speed Machine Tools

Jixie chuandong, 2023
In high-speed machine tools, the friction heat of bearings will cause the deformation of the rolling body and the "burning shaft", which will reduce the fatigue life of bearings and affect the normal operation of equipment.
Li Jiangshan, Yuan Yong, Hao Daqing, Chen Houqing, Zhang Zhanli   +4 more
doaj  

Study on the effect of diketone lubricant on the tribological properties of angular contact ball bearings with skidding behavior

Friction
Skidding in angular contact ball bearings can significantly increase friction, wear, and temperature, affecting bearing performance and service life. Despite its important impact, few studies have systematically investigated lubrication behavior under ...
Shaonan Du, Chenhui Zhang, Zhi Luo
doaj   +1 more source

Investigation of ball vibrations in angular contact ball bearings

, 2004
In this study, a shaft-bearing model is developed in order to investigate ball vibrations in case of defected and undefected ball bearings. In this model, shaft-bearing couple is considered as a mass-spring system and balls are massless. It is well known that the behavior of the system has a nonlinear character under dynamic conditions.
Arslan, Hakan, Aktürk, Nizami
openaire   +2 more sources