US 12,358,614 B2
Axle sleeve
Luca Ferrazzano, Bristol (GB); and James Leather, Bristol (GB)
Assigned to AIRBUS OPERATIONS LIMITED, Bristol (GB)
Filed by Airbus Operations Limited, Bristol (GB)
Filed on Mar. 31, 2022, as Appl. No. 17/709,589.
Claims priority of application No. 2104597 (GB), filed on Mar. 31, 2021.
Prior Publication US 2022/0315210 A1, Oct. 6, 2022
Int. Cl. B64C 25/36 (2006.01); B60B 35/04 (2006.01); B64C 25/42 (2006.01)
CPC B64C 25/36 (2013.01) [B60B 35/04 (2013.01); B64C 25/42 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An aircraft landing gear axle assembly comprising:
an axle including an annular flange configured to support a braking component,
a sleeve disposed circumferentially around the axle, and
a sacrificial wear ring disposed circumferentially around and on an inner surface of the sleeve, wherein the sacrificial wear ring is formed of a composite material and forms a low friction wear surface abutting the axle,
wherein the sleeve extends axially parallel to an axis of the axle and along a length of the axle extending from the annular flange towards an end of the axle opposite to the annular flange,
wherein the sleeve includes a first portion radially aligned with wheel bearings mounted to the sleeve and the axle;
wherein the first portion extends through and between the wheel bearings,
wherein the sleeve includes a second portion extending in the direction of the axis from the first portion towards the annular flange,
wherein the sleeve is continuous through the first portion and the second portion;
wherein the second portion does not support an external load applied directly to the second portion along a direction extending radially from the axle, and
wherein the sacrificial ring is on the second portion of the sleeve and the sacrificial ring is spaced apart from the first portion.