摘要:
The roller bearing provides an inner ring, an outer ring, and at least one row of oblique contact rollers arranged between bearing races, of the rings. Each of the rings provides a guide face, which is in contact with end faces, of the rollers. A point of intersection of the axis of rotation of each roller of the row with each guide face, of the rings is situated at an equal distance from inner, and outer, edges of the guide face.
摘要:
The invention provides a slewing bearing having two rings and rollers arranged between the rings, wherein one of the rings is provided with a through-hole for inserting the rollers for assembly and maintenance, and with a plug for closing the through-hole. The through-hole is formed as a bore including an inner portion with a smaller bore diameter and an outer portion with a larger bore diameter. The invention provides a slewing bearing, where the smaller diameter portion can be reduced in order to facilitate the assembly, while avoiding an increased diameter in the innermost part of the thorough hole in order to secure stability and robustness.
摘要:
A roller bearing for a tunneller having an inner ring, an outer ring, two sets of rolling elements arranged between the tracks formed on the rings, the first set of rolling elements including at least one roller able to withstand axial stresses and the second set of rolling elements including an angular-contact roller that is able to withstand both radial and axial stresses, the inner and outer rings being concentric about an axis of rotation of the roller bearing. Each roller in the first set includes a first axis of revolution (Y1-Y1) inclined in relation to the axis of rotation (X-X) by a first angle (α1) of between 45° and 95° and each roller in the second set includes a second axis of revolution (Y2-Y2) inclined in relation to the axis of rotation (X-X) by a second angle (α2) of between 0° and 45°.
摘要:
A roller bearing for a tunneller having an inner ring, an outer ring, two sets of rolling elements arranged between the tracks formed on the rings, the first set of rolling elements including at least one roller able to withstand axial stresses and the second set of rolling elements including an angular-contact roller that is able to withstand both radial and axial stresses, the inner and outer rings being concentric about an axis of rotation of the roller bearing. Each roller in the first set includes a first axis of revolution (Y1-Y1) inclined in relation to the axis of rotation (X-X) by a first angle (α1) of between 45° and 95° and each roller in the second set includes a second axis of revolution (Y2-Y2) inclined in relation to the axis of rotation (X-X) by a second angle (α2) of between 0° and 45°.
摘要:
The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least two rows of contact rollers disposed between raceways provided on the rings. The spacer comprises opposite inner and outer portions facing one another, a first lateral portion extending transversally between the inner and outer portions and connected to the portions, and a second lateral portion facing the first lateral portion and extending from the outer portion towards the inner portion. The inner and outer portions delimit together with the lateral portions a pocket configured to receive at least two superposed contact rollers. A free edge of the second lateral portion defines with the inner portion an aperture in order to open laterally the pocket on the side opposite to the first lateral portion.
摘要:
A spacer for a rolling bearing, most notably for use in a wind turbine is provided. The spacer is adapted for a rolling bearing having an inner ring, an outer ring and at least one row of angular contact rollers disposed between raceways provided on the rings. The spacer includes two opposite faces 17, 18 having a concave profile adapted to the rollers, each face comprising at least a contact surface 17a, 18a with the associated roller having the shape of a cylinder segment. The axes of the cylinder segments of the contact surfaces converge.
摘要:
The rolling bearing provides an inner ring 14, an outer ring 16 and a plurality of rows of rolling elements 18, 20 each arranged between the raceways which are arranged on the rings, the number of rows of rolling elements Nrows being in excess of or equal to two. At least one of the inner and outer rings 14, 16 includes a plurality of part rings 30, 32, 34 which are mounted bearing axially against one another. The number of part rings Nrings is defined by Nrings≧Nrows+1.
摘要:
The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least one row of contact rollers disposed between raceways provided on the rings. The spacer comprises opposite first and second portions 11, 12 facing one another and at least a first lateral portion 13 extending transversally between the first and second portions and connected to the portions. The first and second portions and the first lateral portion delimit at least partly a pocket 14 laterally open on the side opposite to the lateral portion 13 and configured to receive at least a contact roller. The first and second portions each comprise an inner contact surface 11a, 12a with an end face of the roller. The spacer further comprises at least one reinforcing beam 16, 17 extending transversally between the first and second portions and connected to the portions.
摘要:
The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least two rows of contact rollers disposed between raceways provided on the rings. The spacer comprises opposite inner and outer portions facing one another, a first lateral portion extending transversally between the inner and outer portions and connected to the portions, and a second lateral portion facing the first lateral portion and extending from the outer portion towards the inner portion. The inner and outer portions delimit together with the lateral portions a pocket configured to receive at least two superposed contact rollers. A free edge of the second lateral portion defines with the inner portion an aperture in order to open laterally the pocket on the side opposite to the first lateral portion.
摘要:
The spacer is adapted for a rolling bearing comprising an inner ring, an outer ring and at least one row of contact rollers disposed between raceways and guiding surfaces provided on the rings. The spacer comprises opposite inner and outer portions facing one another and at least a first lateral portion extending transversally between the inner and outer portions and connected to the portions. The inner and outer portions and the first lateral portion delimit at least partly a pocket configured to receive at least a contact roller. The inner and outer portions each comprise at least a protruding means extending outwards and having a contact surface with one of the inner and outer rings.