Results 1 to 10 of about 10,169,708 (230)
LubricantsA deep understanding of oil behavior inside roller bearings is important for the precise design of bearing configurations and oil systems in aircraft engines.
Wenjun Gao +4 more
doaj +5 more sources
AerospaceAs a core component of aero-engines, double-row ball bearings’ lubrication performance directly impacts the operational stability of the aircraft engine.
Xiaozhou Hu, Jian Lin
doaj +5 more sources
Applied SciencesOil/air two-phase flow distribution in the bearings is the basis for bearing lubrication status identification and precise thermal analysis of the bearing.
Yaguo Lyu +4 more
doaj +5 more sources
Analysis of Oil-Air Two-Phase Flow Characteristics Inside a Ball Bearing With Under-Race Lubrication [PDF]
Processes, 2020 Under-race lubrication can increase the amount of lubricating oil entering a bearing and greatly improve lubrication and cooling effects. The oil-air two-phase flow characteristics inside a ball bearing with under-race lubrication play a key role in lubrication and cooling performance. The motions of ball bearing subassemblies are complicated.
Heyun Bao, Xiaonan Hou
exaly +3 more sources
Machines, 2023 The paper mainly studied the temperature rise characteristics of under-race lubricated high-speed angular contact ball bearings under operational conditions from the perspective of dynamics.
Jintao Lei +4 more
doaj +4 more sources
TechnologiesThe lubrication of high-speed bearings in variable-speed transmission systems is typically achieved through radial under-race lubrication devices, where the performance of the oil capture section significantly affects the overall lubrication performance.
Xiaozhou Hu, Kang Duan, Bingkun Han
doaj +4 more sources
Oil Distribution around Ball–Raceway Local Contact Region in Under-Race Lubrication of Ball Bearing
DynamicsThe distribution of oil and gas phases around ball–raceway local regions is an important basis and foundation for determining whether a bearing is sufficiently lubricated.
Qingcheng Yu +4 more
doaj +2 more sources
Tribology International, 2019 Abstract Oil-phase distribution inside roller bearings with under-race lubrication is a key element for bearing lubricating and cooling, and it determines the bearing's hydraulic loss, which may represent up to 50% of total power dissipated. The CLSVOF method for multiphase flow is conducted to track oil/air two-phase flow inside roller bearing with ...
Daniel Nelias, Wenjun Gao, Yaguo Lyu
exaly +3 more sources
Study on Lubrication Flow and Heat Transfer Characteristics of Under-Race Lubrication for High Speed Ball Bearing [PDF]
, 2022 In order to reveal the lubrication characteristics of high-speed ball bearings under the sub-ring lubrication mode and improve the lubrication efficiency of ball bearings, a three-dimensional geometric model of high-speed ball bearings was established.
Feng, Yuxiang +3 more
openaire +1 more source
Journal of the Japan Society for Precision Engineering, 1994 This paper deals with the temperature and thermal deformation performance of the machine tool spindle with high speed and under-race lubrication. As a result of measurement on rotating test, under-race jet lubrication has succeeded in rotating at a 20000 min-1 (dmn=2.5×106) and achieved a high precision on a small thermal deformation by oil cooling of ...
NAKAMURA, Shinya +3 more
+5 more sources