No.1014E 2017Special Edition on Automotive Bearing Technologies Development of Next Generation Low Friction Torque Tapered Roller Bearing (LFT-IV)

Category TECHNICAL REPORT
Author D. OKAMOTO
New Business Promotion Dept.
A. SUZUKI
Automotive Bearing Development Dept., Bearing Operations Headquarters
T. AIDA K. NAITO
Experiment & Analysis Dept., Bearing Operations Headquarters
Abstract We JTEKT have been developing low friction torque bearings from the viewpoint of environmental issues such as global warming. In particular, we are more advanced than competitor companies regarding the development of low friction tapered roller bearings (TRB), which at JTEKT are called our "LFT series". Furthermore, we have engaged in the development of the new TRB, known as the "LFT-IV", and have achieved a 50 percent reduction in friction torque compared with the previous product ("LFT-II") by utilizing CAE tools.
Keyword low friction torque, tapered roller bearing, cage, resin, CFD, LFT-IV
Reference

Y. ASAI, H. OHSHIMA: Development of Low Friction Tapered Roller Bearings, Koyo Engineering Journal, No.143 (1993) 23 (in Japanese).
H. OOSHIMA : Low Friction Torque Bearings for Differential Pinion, JTEKT ENGINEERING JOURNAL, No. 1009E (2012) 37.
H. MATSUYAMA : High Efficiency and Tribology in Rolling Bearings, JTEKT ENGINEERING JOURNAL, No.1009E (2012) 108.

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