This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Needle Roller Bearing Lubricant Flow CFD Simulations
ISSN: 0148-7191, e-ISSN: 2688-3627
Published January 09, 2013 by The Automotive Research Association of India in India
Annotation ability available
This work analyzes the lubricant supply to critical regions of needle roller bearing of an automatic transmission. The needle roller bearing is a critical component of an automatic transmission and it has several rotating cylindrical needle rollers that are having relative motion with inner surface of the pinion. Supply of lubricant to the needle roller bearings is very essential to prevent failure of the bearings due to frictional contact between rollers and inner surface of pinion. The supply of lubricant to the needle roller bearings depends on the location of oil supply hole. Lubricant supply to the needle roller bearings of an automatic transmission is studied using commercial 3D Computational Fluid Dynamics (CFD) software for different oil supply positions. CFD simulation is performed for the region between the pinion supply hole and end of the needle bearings including all needles. Lubricant is supplied to the needle bearing from the pinion pin oil supply hole. This study helps in identifying the oil volume fraction in the critical regions of needle roller bearing with change in oil supply location.
|Technical Paper||The Constantinesco Torque-Converter|
|Technical Paper||Gerotor Oil Pump Performance and Flow/Pressure Ripple Study|
|Technical Paper||Dynamic Fluid Flow Analysis of Oil Pumps|
CitationRaju, K., Veettil, M., Ray, S., and Shi, F., "Needle Roller Bearing Lubricant Flow CFD Simulations," SAE Technical Paper 2013-26-0041, 2013, https://doi.org/10.4271/2013-26-0041.
- Bhushan Bharat Modern Tribology Handbook 2 CRC Press USA 2000
- Kim H , Zini D , Chen J and Anderson N “Planetary Gearset Lubrication Requirement Estimation Based on Heat Generation”, 08FTM07 AGMA Technical Publication 2010
- Chihara K and Satou T Trends Regarding Needle Roller Bearings for Automatic Transmission Planetary Gears Technical Report, Koyo Engineering Journal English Edition No 168E 2005
- Dhar Sujan , Rawool Amit , Ray Sudipto and Shi Fanghui Lubricant Flow and Temperature Prediction in a Planetary Gearset SAE Paper No. 2011-01-1235 2011 10.4271/1235 2011