US 12,066,057 B2
Bearing assembly
Duc Hoi Kim, Incheon (KR); Ro Hee Lee, Incheon (KR); and Sai Ryun Kim, Incheon (KR)
Assigned to SEGOS CO., LTD., Incheon (KR)
Appl. No. 17/762,487
Filed by SEGOS CO., LTD., Incheon (KR)
PCT Filed Jul. 27, 2020, PCT No. PCT/KR2020/009880
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2021/060689, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 10-2019-0117676 (KR), filed on Sep. 24, 2019.
Prior Publication US 2022/0341465 A1, Oct. 27, 2022
Int. Cl. F16C 33/58 (2006.01); F16C 19/02 (2006.01)
CPC F16C 33/585 (2013.01) [F16C 19/02 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A bearing assembly comprising:
an outer ring in which a hollow is formed and which includes a protrusion protruding along an inner circumferential surface of the outer ring in a radial direction and a first ball contact portion and a second ball contact portion which are separated by the protrusion;
an inner ring having an outer circumferential surface on which a third ball contact portion is formed and inserted into the hollow to form a first track portion between the first ball contact portion and the third ball contact portion and a second track portion between the second ball contact portion and the third ball contact portion; and
a plurality of bearing balls which are disposed between the outer ring and the inner ring and rotatably connect the outer ring and the inner ring,
wherein the bearing balls are disposed in the first track portion and the second track portion to form a double row bearing with the plurality of balls contacting the respective ball contact portions,
wherein
the first ball contact portion of the outer ring includes a first contact surface part and a second contact surface part; and
the bearing balls are in point contact with the first contact surface part and the second contact surface part,
wherein a diameter (D1) of the bearing ball is greater than a length (D2) of the first contact surface part in a width direction (W).