Title:
CONICAL ROLLER BEARING
Document Type and Number:
Japanese Patent JP2015075141
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent the deformation of a cage by making a conical roller not abut on a small-diameter side flange part, and to avoid a risk that a rolling face of the conical roller is largely damaged.SOLUTION: In a conical roller bearing 10, an inner ring side raceway face 22 inclined to an axial line is formed at an external periphery of an inner ring 20, a small-diameter side flange part 25 protruding to a direction of an outside diameter is formed at a small-diameter side of the inner ring 20, a small-diameter side flange part end face 25a which can contact with small-diameter side end faces 42 of a conical roller 40 is formed at the small-diameter side flange part 25, and a large-diameter side shoulder part 26 protruding to the direction of the outside diameter is formed at a large-diameter side of the inner ring 20. A through-groove 25b which is circular in a cross section, and can penetrate the small-diameter side of the conical roller 40 in an axial direction of the inner ring 20 is formed at an angle position corresponding to a plurality of the conical roller 40 of the small-diameter side flange part 25, and a tapered inclined face 25c which gradually becomes large in a cross section circular shape is formed toward an end face at a side opposite to the small-diameter side flange part end face 25a of the small-diameter side flange part 25 from the through-groove 25b.
Inventors:
ISHIGURO KENJI
JO HIROSHI
JO HIROSHI
Application Number:
JP2013210312A
Publication Date:
April 20, 2015
Filing Date:
October 07, 2013
Export Citation:
Assignee:
JTEKT CORP
International Classes:
F16C19/36; F16C33/64; F16C43/06