Investigation of Drag and Churning Losses on Tapered Roller Bearings

2259 Views
2369 Downloads
Export citation: ABNT
LIEBRECHT, Jürgen ;SI, Xiaojiang ;SAUER, Bernd ;SCHWARZE, Hubert .
Investigation of Drag and Churning Losses on Tapered Roller Bearings. 
Strojniški vestnik - Journal of Mechanical Engineering, [S.l.], v. 61, n.6, p. 399-408, june 2018. 
ISSN 0039-2480.
Available at: <https://www.sv-jme.eu/article/investigation-of-drag-and-churning-losses-on-tapered-roller-bearings/>. Date accessed: 06 dec. 2022. 
doi:http://dx.doi.org/10.5545/sv-jme.2015.2490.
Liebrecht, J., Si, X., Sauer, B., & Schwarze, H.
(2015).
Investigation of Drag and Churning Losses on Tapered Roller Bearings.
Strojniški vestnik - Journal of Mechanical Engineering, 61(6), 399-408.
doi:http://dx.doi.org/10.5545/sv-jme.2015.2490
@article{sv-jmesv-jme.2015.2490,
	author = {Jürgen  Liebrecht and Xiaojiang  Si and Bernd  Sauer and Hubert  Schwarze},
	title = {Investigation of Drag and Churning Losses on Tapered Roller Bearings},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {61},
	number = {6},
	year = {2015},
	keywords = {tapered roller bearing; churning losses; drag losses; frictional torque; CFD simulation},
	abstract = {Today there are a lot of findings to determine losses caused by contact forces inside roller bearings. But there are also losses in bearings caused by displacement of lubricant. These are known as churning or drag losses. In general the bearing manufacturers give recommendations how to reduce them. The most common solution is the reduction of the oil bath level. Some bearing manufacturers even provide models or empirical equations to calculate the resistance resulting from rolling elements moving through the oil. These models take the operating conditions such as the viscosity of the oil at the operating temperature, oil level, bearing type and rotational speed into consideration. A comparison between calculated and experimental results shows that there is still a deviation because of further effects which are not considered in those analytical models. This paper presents experimental studies and numerical simulations which illustrate the influence of the oil quantity on the total friction torque of tapered roller bearings and identify the resulting losses.},
	issn = {0039-2480},	pages = {399-408},	doi = {10.5545/sv-jme.2015.2490},
	url = {https://www.sv-jme.eu/article/investigation-of-drag-and-churning-losses-on-tapered-roller-bearings/}
}
Liebrecht, J.,Si, X.,Sauer, B.,Schwarze, H.
2015 June 61. Investigation of Drag and Churning Losses on Tapered Roller Bearings. Strojniški vestnik - Journal of Mechanical Engineering. [Online] 61:6
%A Liebrecht, Jürgen 
%A Si, Xiaojiang 
%A Sauer, Bernd 
%A Schwarze, Hubert 
%D 2015
%T Investigation of Drag and Churning Losses on Tapered Roller Bearings
%B 2015
%9 tapered roller bearing; churning losses; drag losses; frictional torque; CFD simulation
%! Investigation of Drag and Churning Losses on Tapered Roller Bearings
%K tapered roller bearing; churning losses; drag losses; frictional torque; CFD simulation
%X Today there are a lot of findings to determine losses caused by contact forces inside roller bearings. But there are also losses in bearings caused by displacement of lubricant. These are known as churning or drag losses. In general the bearing manufacturers give recommendations how to reduce them. The most common solution is the reduction of the oil bath level. Some bearing manufacturers even provide models or empirical equations to calculate the resistance resulting from rolling elements moving through the oil. These models take the operating conditions such as the viscosity of the oil at the operating temperature, oil level, bearing type and rotational speed into consideration. A comparison between calculated and experimental results shows that there is still a deviation because of further effects which are not considered in those analytical models. This paper presents experimental studies and numerical simulations which illustrate the influence of the oil quantity on the total friction torque of tapered roller bearings and identify the resulting losses.
%U https://www.sv-jme.eu/article/investigation-of-drag-and-churning-losses-on-tapered-roller-bearings/
%0 Journal Article
%R 10.5545/sv-jme.2015.2490
%& 399
%P 10
%J Strojniški vestnik - Journal of Mechanical Engineering
%V 61
%N 6
%@ 0039-2480
%8 2018-06-27
%7 2018-06-27
Liebrecht, Jürgen, Xiaojiang  Si, Bernd  Sauer, & Hubert  Schwarze.
"Investigation of Drag and Churning Losses on Tapered Roller Bearings." Strojniški vestnik - Journal of Mechanical Engineering [Online], 61.6 (2015): 399-408. Web.  06 Dec. 2022
TY  - JOUR
AU  - Liebrecht, Jürgen 
AU  - Si, Xiaojiang 
AU  - Sauer, Bernd 
AU  - Schwarze, Hubert 
PY  - 2015
TI  - Investigation of Drag and Churning Losses on Tapered Roller Bearings
JF  - Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2015.2490
KW  - tapered roller bearing; churning losses; drag losses; frictional torque; CFD simulation
N2  - Today there are a lot of findings to determine losses caused by contact forces inside roller bearings. But there are also losses in bearings caused by displacement of lubricant. These are known as churning or drag losses. In general the bearing manufacturers give recommendations how to reduce them. The most common solution is the reduction of the oil bath level. Some bearing manufacturers even provide models or empirical equations to calculate the resistance resulting from rolling elements moving through the oil. These models take the operating conditions such as the viscosity of the oil at the operating temperature, oil level, bearing type and rotational speed into consideration. A comparison between calculated and experimental results shows that there is still a deviation because of further effects which are not considered in those analytical models. This paper presents experimental studies and numerical simulations which illustrate the influence of the oil quantity on the total friction torque of tapered roller bearings and identify the resulting losses.
UR  - https://www.sv-jme.eu/article/investigation-of-drag-and-churning-losses-on-tapered-roller-bearings/
@article{{sv-jme}{sv-jme.2015.2490},
	author = {Liebrecht, J., Si, X., Sauer, B., Schwarze, H.},
	title = {Investigation of Drag and Churning Losses on Tapered Roller Bearings},
	journal = {Strojniški vestnik - Journal of Mechanical Engineering},
	volume = {61},
	number = {6},
	year = {2015},
	doi = {10.5545/sv-jme.2015.2490},
	url = {https://www.sv-jme.eu/article/investigation-of-drag-and-churning-losses-on-tapered-roller-bearings/}
}
TY  - JOUR
AU  - Liebrecht, Jürgen 
AU  - Si, Xiaojiang 
AU  - Sauer, Bernd 
AU  - Schwarze, Hubert 
PY  - 2018/06/27
TI  - Investigation of Drag and Churning Losses on Tapered Roller Bearings
JF  - Strojniški vestnik - Journal of Mechanical Engineering; Vol 61, No 6 (2015): Strojniški vestnik - Journal of Mechanical Engineering
DO  - 10.5545/sv-jme.2015.2490
KW  - tapered roller bearing, churning losses, drag losses, frictional torque, CFD simulation
N2  - Today there are a lot of findings to determine losses caused by contact forces inside roller bearings. But there are also losses in bearings caused by displacement of lubricant. These are known as churning or drag losses. In general the bearing manufacturers give recommendations how to reduce them. The most common solution is the reduction of the oil bath level. Some bearing manufacturers even provide models or empirical equations to calculate the resistance resulting from rolling elements moving through the oil. These models take the operating conditions such as the viscosity of the oil at the operating temperature, oil level, bearing type and rotational speed into consideration. A comparison between calculated and experimental results shows that there is still a deviation because of further effects which are not considered in those analytical models. This paper presents experimental studies and numerical simulations which illustrate the influence of the oil quantity on the total friction torque of tapered roller bearings and identify the resulting losses.
UR  - https://www.sv-jme.eu/article/investigation-of-drag-and-churning-losses-on-tapered-roller-bearings/
Liebrecht, Jürgen, Si, Xiaojiang, Sauer, Bernd, AND Schwarze, Hubert.
"Investigation of Drag and Churning Losses on Tapered Roller Bearings" Strojniški vestnik - Journal of Mechanical Engineering [Online], Volume 61 Number 6 (27 June 2018)

Authors

Affiliations

  • University of Kaiserslautern, Institute for Machine Elements, Gears and Transmissions, Germany 1
  • University of Clausthal-Zellerfeld, Institute of Tribology and Energy Conversion Machinery, Germany 2

Paper's information

Strojniški vestnik - Journal of Mechanical Engineering 61(2015)6, 399-408
© The Authors, CC-BY 4.0 Int. Change in copyright policy from 2022, Jan 1st.

https://doi.org/10.5545/sv-jme.2015.2490

Today there are a lot of findings to determine losses caused by contact forces inside roller bearings. But there are also losses in bearings caused by displacement of lubricant. These are known as churning or drag losses. In general the bearing manufacturers give recommendations how to reduce them. The most common solution is the reduction of the oil bath level. Some bearing manufacturers even provide models or empirical equations to calculate the resistance resulting from rolling elements moving through the oil. These models take the operating conditions such as the viscosity of the oil at the operating temperature, oil level, bearing type and rotational speed into consideration. A comparison between calculated and experimental results shows that there is still a deviation because of further effects which are not considered in those analytical models. This paper presents experimental studies and numerical simulations which illustrate the influence of the oil quantity on the total friction torque of tapered roller bearings and identify the resulting losses.

tapered roller bearing; churning losses; drag losses; frictional torque; CFD simulation