Rolling bearing with two rows of rolling elements and equipped with a retention piece for the bearing rings, retention piece usable for this purpose and process for assembling such a bearing
AssigneeSKF France
InventorsFabrice Caron, Herve Le Quinio
Life of this patent
Estimating the term…
Abstract
A roller bearing assembly with two rows of rolling elements includes a first ring formed in one piece to have two raceways and two independent rings each having one raceway, a device for maintaining the relative positions of the rolling elements between the rings and a device for fixing the two independent rings axially to one another. The relative positions of at least some of the rolling elements are maintained by two parts of a retention device which includes, before the bearing is assembled, one or more connecting zones in a relatively weakened condition so that they will break during assembly of the rolling bearing assembly.
Claims23
A roller bearing assembly comprising two rows of rolling elements, two raceways and two independent rings, each of said independent rings having one raceway, means for maintaining the relative positions of the rolling elements between the rings and means for fixing the two independent rings axially to one another, the two independent rings being fixed axially to one another by means of two parts of a retention means having, before the bearing is assembled, one or more connecting zones weakened so that they are capable of breaking during assembly of said bearing, the retention means maintaining the relative positions of at least some of that rolling elements.
Retention means made of moulded plastic material, comprising a first part in the form of a cylindrical cage provided with pockets capable of receiving at least some rolling elements of a roller bearing assembly with two rows of rolling elements, said roller bearing assembly comprising a first ring formed in one piece and a set of two independent rings and a second part moulded integrally with said first part concentric relative to the cage and connected to the latter by means of one or more connecting zones weakened so that they are capable of breaking during the assembly of the bearing assembly.
Dependencies are inferred from the claim text.