초록 ▼

A bearing assembly includes at least one outer ring and an inner ring unit including first and second inner rings, the inner ring unit having a central, axial bore extending through the first and second inner rings, and a plurality of attachment bores for attaching the bearing assembly to a bearing

A bearing assembly includes at least one outer ring and an inner ring unit including first and second inner rings, the inner ring unit having a central, axial bore extending through the first and second inner rings, and a plurality of attachment bores for attaching the bearing assembly to a bearing carrier. A first plurality of roller bodies is disposed between the at least one outer ring and the first inner ring and a second plurality of roller bodies is disposed between the at least one outer ring and the second inner ring. A pin extends through the central axial bore of the first inner ring and through the central axial bore of the second inner ring, and the pin maintains a predetermined preload on the bearing assembly by holding the first inner ring in a fixed position relative to the second inner ring.

대표청구항 ▼

1. A bearing assembly comprising: at least one outer ring;an inner ring unit including a first inner ring and a second inner ring, the inner ring unit having a central, axial bore extending through the first inner ring and the second inner ring, and a plurality of attachment bores for attaching the

1. A bearing assembly comprising: at least one outer ring;an inner ring unit including a first inner ring and a second inner ring, the inner ring unit having a central, axial bore extending through the first inner ring and the second inner ring, and a plurality of attachment bores for attaching the bearing assembly to a bearing carrier, the plurality of attachment bores being spaced radially outward of the central axial bore and located away from an axis of symmetry of the bearing assembly;a first plurality of roller bodies rotatably disposed between the at least one outer ring and the first inner ring and a second plurality of roller bodies disposed between the at least one outer ring and the second inner ring; anda pin extending through the central axial bore of the first inner ring and through the central axial bore of the second inner ring, the pin maintaining a predetermined preload on the bearing assembly by holding the first inner ring in a fixed position relative to the second inner ring,the pin is press fit in the central axial bore of the first inner ring and in the central axial bore of the second inner ring, anda chamfer on a radially-inward edge of at least one of the first inner ring and the second inner ring, at least one groove on an outer surface of the first inner ring on a side of the first inner ring facing the second inner ring, the at least one groove extending radially outward from the chamfer and being configured to transport lubricant radially outwardly from the chamfer. 2. The bearing assembly according to claim 1, wherein the first and second plurality of roller bodies are tapered roller bodies and wherein the central axial bore of the first inner ring and the central axial bore of the second inner ring are coaxial. 3. The bearing assembly according to claim 1, wherein the groove is spiral-shaped. 4. The bearing assembly according to claim 1, wherein the pin has an at least partially hollow interior and a radially-extending bore, the bore being configured to transport lubricant from the at least partially hollow interior to the at least one chamfer. 5. The bearing assembly according to claim 4, including a circular groove on or in the first inner ring at an outer side surface of the first inner ring that faces away from the second inner ring, and a radial groove extending from the circular groove to an inner edge of the first inner ring. 6. An apparatus comprising: a bearing carrier; anda bearing assembly comprising:at least one outer ring;an inner ring unit including a first inner ring and a second inner ring, the inner ring unit having a central, axial bore extending through the first inner ring and the second inner ring, and a plurality of attachment bores for attaching the bearing assembly to a bearing carrier, the plurality of attachment bores being spaced radially outward of the central axial bore and located away from an axis of symmetry of the bearing assembly;a first plurality of roller bodies rotatably disposed between the at least one outer ring and the first inner ring and a second plurality of roller bodies disposed between the at least one outer ring and the second inner ring; anda pin extending through the central axial bore of the first inner ring and through the central axial bore of the second inner ring, the pin maintaining a predetermined preload on the bearing assembly by holding the first inner ring in a fixed position relative to the second inner ring, andthe apparatus further comprising a plurality of attachment devices extending through each of the plurality of attachment bores and into the bearing carrier and securing the bearing assembly to the bearing carrier,wherein the plurality of attachment devices have threaded ends that threadably engage threaded openings in the bearing carrier, andwherein the first inner ring includes an inner face and an outer face and the second inner ring includes an inner face facing the inner face of the first inner ring and an outer face, andwherein each of the attachment bores has an end portion at the first inner ring outer face having a diameter greater than a diameter of a second portion of the attachment bores at a location between the first inner ring inner face and the first inner ring outer face, andwherein each of the attachment devices includes a head disposed in the end portion. 7. The apparatus according to claim 6, wherein the bearing carrier is one of an engine and an engine housing of a motor vehicle. 8. The apparatus according to claim 6, further comprising gear teeth disposed on a radially-outer portion of the bearing assembly. 9. The apparatus according to claim 6, wherein the plurality of attachment devices have threaded ends that threadably engage threaded openings in the bearing carrier, and wherein the first inner ring includes an inner face and an outer face and the second inner ring includes an inner face facing the inner face of the first inner ring and an outer face, andwherein each of the attachment devices includes a head overlying a portion of the first inner ring outer face and overlying a portion of the pin. 10. A bearing assembly comprising: at least one outer ring,an inner ring unit including a first inner ring having a central, axial bore and a second inner ring having a central, axial bore,a first plurality of roller bodies rotatably disposed between the at least one outer ring and the first inner ring and a second plurality of roller bodies rotatably disposed between the at least one outer ring and the second inner ring,a pin extending through the central axial bore of the first inner ring and through the central axial bore of the second inner ring and forming a friction fit with the central axial bore of the first inner ring and the central axial bore of the second inner ring and maintaining a predetermined preload on the bearing assembly, anda plurality axial attachment bores located radially outwardly of the central axial bore of the first inner ring, each of the plurality of axial attachment bores being configured to receive at least one attachment device for fixing the bearing assembly to a bearing carrier,wherein at least a portion of the first inner ring and a portion of the second inner ring are located in a central opening of the at least one outer ring, anda circular groove located radially outward of the attachment bores formed on or in the first inner ring at an outer side surface of the first inner ring that faces away from the second inner ring, and a radial groove extending from the circular groove to an inner edge of the first inner ring. 11. The bearing assembly according to claim 10, wherein the at least one attachment device comprises a plurality of attachment devices, and wherein each of the plurality of attachment devices extends through one of the plurality of axial attachment bores. 12. The bearing assembly according to claim 10, wherein the axial attachment bores are located in the pin. 13. The bearing assembly according to claim 10, wherein the roller bodies are tapered roller bodies. 14. The bearing assembly according to claim 10, wherein the first inner ring and the second inner ring are identical. 15. The bearing assembly according to claim 10, wherein the portion of the first inner ring is in direct contact with the portion of the second inner ring. 16. The bearing assembly according to claim 10, wherein the first inner ring has an inner face lying in a plane and the second inner ring has an inner face facing the first inner ring inner face,wherein the plane intersects the outer ring, andwherein the first plurality of rollers are located entirely on a first side of the plane and the second plurality of rollers are located entirely on a second side of the plane. 17. An apparatus comprising the bearing assembly according to claim 10 attached to the bearing carrier by the at least one attachment device.