Nano Surface Modification of Hub Bearing Race Ways for Increasing the Dynamic Load Rating and Decreasing the Friction Loss DesignMecha R&D Center

Format:

Conference/Event

Author/Creator:

Cho, Inho, author.

Conference Name:

Asia Pacific Automotive Engineering Conference (2007-08-05 : Hollywood, California, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2007

Summary:

UNSM technology increases surface hardness, induces a large amount of compressive residual stress in the subsurface, refines the grain size into 50200 nm, and modifies the surface into micro dimple structure which reduces the friction coefficient about 50% simultaneously. In order to show the possibility of weight and friction reduction at Hub bearing application, hardness, roughness, residual stress, surface topology, friction coefficient and wear rate are compared before and after UNSM treatment of test specimens. Two type of rolling contact fatigue test and pin-on-disc test are carried out for test specimens. Finally dynamo test of hub bearing assembly is being carried out. Test results show that UNSM technology can reduce the weight and friction loss of hub bearing and is very effective technology for fuel consumption and CO2 emissions of vehicle

Notes:

Vendor supplied data

Publisher Number:

2007-01-3735

Access Restriction:

Restricted for use by site license