Title:
COMPOSITE BEARING
Document Type and Number:
Japanese Patent JP2019173917
Kind Code:
A
Abstract:
To complete alignment even after a preload is applied, to secure smooth rotation in a composite bearing.SOLUTION: A thrust fitting clearance between a shaft 1 and a thrust inner ring 11 is A, and a radial internal clearance between the shaft 1 and a roller 16 is B; a minimum value in the tolerance range of the thrust fitting clearance A is Amin, and a maximum value in the tolerance range of the radial internal clearance B is Bmax; a coaxiality total value that is the total of the coaxiality of an inner diameter of the thrust inner ring 11 and an inner ring ball groove 11a and the coaxiality of a radial outer ring 15 and an outer ring ball groove 12a is C; and when the sum of the numerical values of the basic tolerances of the shaft 1 and a housing 2 is α, a composite bearing satisfying Amin>Bmax+C+α is formed.SELECTED DRAWING: Figure 3
Inventors:
NAKAYAMA KEIGO
Application Number:
JP2018064541A
Publication Date:
October 10, 2019
Filing Date:
March 29, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C19/49
Attorney, Agent or Firm:
Naoya Kamata
Bunji Kamada
Yaichiro Nakatani
Masanori Akatsuka
Bunji Kamada
Yaichiro Nakatani
Masanori Akatsuka