US 12,460,993 B2
Method and device for structural fatigue life testing of bearings
Xingzheng Li, Shaoxing (CN); Keqiang Cao, Shanghai (CN); Yuefeng Chen, Tours (CN); Meng Zhang, Shanghai (CN); and He Zhu, Shanghai (CN)
Assigned to Aktiebolaget SKF, Gothenburg (SE)
Filed by Aktiebolaget SKF, Gothenburg (SE)
Filed on Mar. 1, 2023, as Appl. No. 18/115,920.
Claims priority of application No. 202210291044.9 (CN), filed on Mar. 23, 2022.
Prior Publication US 2023/0266200 A1, Aug. 24, 2023
Int. Cl. G01M 13/04 (2019.01)
CPC G01M 13/04 (2013.01) 20 Claims
OG exemplary drawing
 
4. A loading device for structural fatigue life testing of a bearing having an outer ring, the loading device comprising:
a load collar being adapted to accommodate a strain wave generator formed by a cam embedded in the bearing being tested,
wherein the loading device is capable of deforming synchronously with a rotational radial expansion of the outer ring of the bearing which is driven by the strain wave generator, so as to apply, together with the cam, a dynamic rotational strain pressure load, mainly in the radial direction, to the bearing, based on the elasticity of the load collar, as a test load for the structural fatigue life testing of the bearing.