Japan, Sept. 18 -- NTN CORP has got intellectual property rights for 'WHEEL BEARING DEVICE AND WHEEL BEARING.' Other related details are as follows:
Application Number: JP,2025-061438
Category (FI): F16C3/02,F16C19/18,F16C35/063,B60B35/14@V,B60B35/14@U,F16C33/58,F16D1/06,210
Stage: PROBLEM TO BE SOLVED: To provide a wheel bearing device which can inhibit occurrence of an abnormality in press-fitting of a protruding part in a second recessed part at an outer joint member.SOLUTION: A stem part 27 serving as a fitting part of an outer joint member 21 to be fitted in a hub ring 3 has a plurality of protruding parts 28 extending in an axial direction. A shaft hole 3e of the hub ring 3 has a plurality of first recessed parts 35 each of which is formed having a larger diameter than that of the protruding part 28 and guides the protruding part 28 when the outer joint member 21 is fitted in the hub ring 3; a plurality of second recessed parts 36 which are disposed adjacent to the outer side of the first recessed parts 35 in the axial direction and each of which is formed having a smaller diameter than that of the protruding part 28 and may be fitted in the protruding part 28 having an interference; and step surfaces 37 each of which is formed in a border part between the first recessed part 35 and the second recessed part 36 and perpendicular to the axial direction. Each second recessed part 36 is formed in a barrel shape in which a center part in the axial direction is larger than both ends.SELECTED DRAWING: Figure 9 (Grant)
Filing Date: April 2, 2025
Publication Date: June 19, 2025
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
