US 9,810,262 B2
Spacer device, toroidal roller bearing and method
Magnus Kellstrom, Partille (SE)
Assigned to AKTIEBOLAGET SKF, Gothenburg (SE)
Filed by Magnus Kellstrom, Partille (SE)
Filed on Nov. 4, 2015, as Appl. No. 14/931,900.
Claims priority of application No. 1451331 (SE), filed on Nov. 7, 2014.
Prior Publication US 2016/0131184 A1, May 12, 2016
Int. Cl. F16C 19/40 (2006.01); F16C 43/06 (2006.01); F16C 23/08 (2006.01); F16C 33/37 (2006.01)
CPC F16C 19/40 (2013.01) [F16C 23/08 (2013.01); F16C 33/3706 (2013.01); F16C 43/06 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A spacer device for roller elements of a toroidal roller bearing having an inner ring with an inner ring raceway and an outer ring with an outer ring raceway, wherein the toroidal roller bearing allows for axial and angular displacement between the inner ring and the outer ring, the spacer device comprising:
at least one centering element arranged to extend in between adjacent roller elements in a longitudinal direction of the roller elements when the spacer device is in use, the at least one centering element having a first longitudinal end and a second longitudinal end, a middle point of the at least one centering element being at a longitudinal location that is halfway between the first longitudinal end and the second longitudinal end,
wherein a portion of the at least one centering element is arranged to make contact with at least one of a point or a region of one of the inner ring raceway or the outer ring raceway when the spacer device is in use, the portion of the at least one centering element having a longitudinal location between the first and second longitudinal ends of the at least one centering element and which generally overlaps the middle point, the portion of the at least one centering element being the only surface of the at least one centering element that contacts the inner ring or the outer ring,
a first part and a second part connected by a connecting element that extends in between the adjacent roller elements in the longitudinal direction of the roller elements when the spacer device is in use, and the at least one centering element is attached to the connecting element,
wherein the spacer device is centered on the one of the inner ring raceway or the outer ring raceway, the at least one centering element is independently axially moveable over the connecting element in the longitudinal direction of the roller elements relative to the first part and the second part of the spacer device.
 
4. A spacer device for roller elements of a toroidal roller bearing having an inner ring with an inner ring raceway and an outer ring with an outer ring raceway, wherein the toroidal roller bearing allows for axial and angular displacement between the inner ring and the outer ring, the spacer device comprising:
a first part and a second part connected by a connecting element that extends in between adjacent roller elements in a longitudinal direction of the roller elements when the spacer device is in use,
at least one centering element attached to the connecting element and arranged to extend in between adjacent roller elements in the longitudinal direction of the roller elements when the spacer device is in use,
wherein the at least one centering element is arranged to make contact with at least one of a point or a region of one of the inner ring raceway or the outer ring raceway when the spacer device is in use,
wherein the spacer device is centered on the one of the inner ring raceway or the outer ring raceway, and
wherein longitudinally outermost surfaces of the at least one centering element are arranged at a distance in the longitudinal direction from longitudinally innermost surfaces of the first part and the second part, respectively, when the spacer device is mounted in the toroidal roller bearing, wherein the distance corresponds to half a maximum axial displacement of the toroidal roller bearing.