US 12,270,438 B2
Bearing unit
Padelis Katsaros, Schweinfurt (DE)
Assigned to AKTIEBOLAGET SKF, Gothenburg (SE)
Filed by AKTIEBOLAGET SKF, Gothenburg (SE)
Filed on May 26, 2023, as Appl. No. 18/324,721.
Claims priority of application No. 102022206714.2 (DE), filed on Jun. 30, 2022.
Prior Publication US 2024/0003385 A1, Jan. 4, 2024
Int. Cl. F16C 33/58 (2006.01); B60B 27/00 (2006.01); F16C 19/38 (2006.01)
CPC F16C 33/585 (2013.01) [B60B 27/0078 (2013.01); F16C 19/38 (2013.01); F16C 2326/02 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A bearing unit comprising:
at least one first ring;
at least one second ring, the at least one first ring and the at least one second ring being rotatable relative to each other and defining a bearing interior between the at least one first ring and the at least one second ring;
a component formed of a first material with a first coefficient of thermal expansion, the at least one first ring being configured to be attached to the component with a press fit and formed from a second material with a second coefficient of thermal expansion different than the first coefficient of thermal expansion; and
an insert element provided on the at least one first ring on a side facing the bearing interior, the at least one insert element being formed from a third material with a third coefficient of thermal expansion, the third coefficient of thermal expansion is substantially at least as high as the first coefficient of thermal expansion;
wherein the bearing unit is a rolling-element bearing unit that includes at least one first row of rolling elements and at least one second row of rolling elements, the at least one insert element being disposed axially centered between the two rows of rolling elements.
 
14. A bearing unit comprising:
at least one first ring;
at least one second ring, the at least one first ring and the at least one second ring being rotatable relative to each other and defining a bearing interior between the at least one first ring and the at least one second ring;
a component formed of a first material with a first coefficient of thermal expansion, the at least one first ring being configured to be attached to the component with a press fit and formed from a second material with a second coefficient of thermal expansion different than the first coefficient of thermal expansion; and
an insert element provided on the at least one first ring on a side facing the bearing interior, the at least one insert element being formed from a third material with a third coefficient of thermal expansion, the third coefficient of thermal expansion is substantially at least as high as the first coefficient of thermal expansion;
wherein the at least one first ring includes a first part and a second part and the at least one insert element is disposed within a region in which the first part and the second part abut against each other.