Title:
VEHICLE WHEEL BEARING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/202440
Kind Code:
A1
Abstract:
An outer joint member (31) and a hub wheel (16) are connected such that face splines (51, 52) provided respectively to the outer joint member (31) and a hub wheel (16) engage with each other, and torque can be transmitted by the application of an axial tightening force between both face splines (51, 52). The tooth flank shapes of both face splines (51, 52) are determined such that in the process of bringing both face splines (51, 52) close to each other in the axial direction and engaging the face splines (51, 52), among an external diameter part (Ea), an internal diameter part (Ec), and an intermediate part (Eb), which is sandwiched between the external diameter part and the internal diameter part, of an engagement region (X) of both face splines, tooth flanks (51a, 51b) of both face splines (51, 52) first come into contact at one among the external diameter part (Ea) and the internal diameter part (Ec), and then the tooth flanks (51a, 51b) of both face splines (51, 52) come into contact at the other among the external diameter part (Ea) and the internal diameter part (Ec).
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Inventors:
FUNAHASHI MASASHI (JP)
FUJIO TERUAKI (JP)
INOUE MASAYA (JP)
FUJIO TERUAKI (JP)
INOUE MASAYA (JP)
Application Number:
PCT/JP2022/011313
Publication Date:
September 29, 2022
Filing Date:
March 14, 2022
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
International Classes:
F16C19/18; B60B35/14; F16D1/06; F16D3/22
Foreign References:
| JP5039048B2 | 2012-10-03 | |||
| US20150021973A1 | 2015-01-22 | |||
| JPS57178903A | 1982-11-04 | |||
| JP2012223803A | 2012-11-15 | |||
| JP2009083813A | 2009-04-23 |
Attorney, Agent or Firm:
SHIROMURA Kunihiko et al. (JP)
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