US 12,297,866 B2
Follower bearing
Tomoaki Nakamura, Mino (JP)
Assigned to NIPPON THOMPSON CO., LTD., Tokyo (JP)
Appl. No. 18/001,035
Filed by NIPPON THOMPSON CO., LTD., Tokyo (JP)
PCT Filed Apr. 30, 2021, PCT No. PCT/JP2021/017179
§ 371(c)(1), (2) Date Dec. 7, 2022,
PCT Pub. No. WO2021/251027, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 2020-099452 (JP), filed on Jun. 8, 2020.
Prior Publication US 2023/0220880 A1, Jul. 13, 2023
Int. Cl. F16C 33/58 (2006.01); F16C 19/26 (2006.01)
CPC F16C 33/585 (2013.01) [F16C 19/26 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A follower bearing comprising:
an inner member having an outer peripheral surface, the outer peripheral surface including an annular first raceway surface;
an outer ring having an inner peripheral surface, the inner peripheral surface including an annular second raceway surface facing the first raceway surface; and
a plurality of rolling elements disposed in an annular raceway arranged between the first raceway surface and the second raceway surface with the rolling elements contacting the first raceway surface and the second raceway surface, wherein
the outer ring includes
a steel annular first member, and
a resin annular second member and covering an outer peripheral surface of the first member,
the first member includes
a cylindrical portion having a hollow cylindrical shape and including the second raceway surface, the cylindrical portion having an annular first end surface at a first end of the first member, and
a projection located at a second end of the first member opposite the first end surface of the cylindrical portion and extending radially outward from the cylindrical portion, the projection having an annular side surface facing toward the first end of the first member, and an annular second end surface located opposite the annular side surface, and
wherein the second member covers the first end portion of the cylindrical portion of the first member, the annular side surface of the projection, and at least a portion of the annular second end surface of the projection.
 
9. A follower bearing comprising:
an inner member having an outer peripheral surface, the outer peripheral surface including an annular first raceway surface;
an outer ring having an inner peripheral surface, the inner peripheral surface including an annular second raceway surface facing the first raceway surface; and
a plurality of rolling elements disposed in an annular raceway arranged between the first raceway surface and the second raceway surface with the rolling elements contacting the first raceway surface and the second raceway surface, wherein
the outer ring includes
a steel annular first member, and
a resin annular second member and covering an outer peripheral surface of the first member,
the first member includes
a cylindrical portion having a hollow cylindrical shape and including the second raceway surface, and
a projection extending radially outward from the cylindrical portion,
wherein the second member is disposed on both sides of the projection in an axial direction of the inner member, and
wherein the inner member includes
a body including the first raceway surface, and
a first protrusion having an annular shape whose center axis coincides with that of the first raceway surface, disposed at one side of the first raceway surface in the axial direction of the inner member, and projecting radially outward from an outer periphery of the body, and
the second member includes a first portion having an annular shape whose center axis coincides with that of the first raceway surface and configured to enter between the first protrusion and the first member.