LARGE ROLLING BEARING

摘要

The invention concerns a large-size rolling bearing which is in the form of a multi-row ball-bearing rotary joint for carrying axial loads, radial loads and tilting moments. The large-size rolling bearing has an outer race, an inner race, a first ball row and a second ball row. The first ball row and the second ball row are respectively arranged in axially mutually spaced relationship in a four-point bearing configuration, associated with the first ball row are four raceway portions and associated with the second ball row are four raceway portions. The invention concerns in particular a large-size rolling bearing in which a surface of a respective raceway portion provided in the inner race is larger than the surface of the respectively adjacent raceway portion provided in the inner race and equal to the surface of the respectively diametrally oppositely disposed raceway portion provided in the outer race.

主权项

1. A large-size rolling bearing comprising:
an outer race; an inner race; and a first ball row and a second ball row, wherein the first ball row and the second ball row are respectively arranged in axially mutually spaced relationship in a four-point bearing configuration, wherein associated with the first ball row are two first raceway portions of the inner race and two first raceway portions of the outer race, and associated with the second ball row are two second raceway portions of the inner race and two second raceway portions of the outer race, wherein an inner surface of one of the first raceway portions and one of the second raceway portions of the inner race is larger than an inner surface of another one of the first raceway portions and another one of the second raceway portions, respectively, of the inner race and is equal to an inner surface of a diametrically opposed raceway portion of the outer race.