Patent ID: 7398724

Claim:
A support structure carrying a thrust load of a compressor, having a compression-contributing member contributing to a compressing operation by rotating according to rotation of a rotating shaft supported rotatably by a housing, wherein said support structure rotatably supports said compression-contributing member with respect to said housing and includes a thrust needle roller bearing having double-row needle rollers; wherein the thrust needle roller bearing comprises a plurality of needle rollers and two cages which engage each other to form a cage assembly having roller holder portions to respectively retain the needle rollers; wherein one of the two cages has a notch, and the other of the two cages has a projection for engaging the notch to position the two cages with respect to each other; wherein one, and only one, of the two cages has a bent inner end and a bent outer end, such that respective end faces of the inner end and the outer end face toward the other of the two cages, and the other of the two cages does not have either a bent inner end or a bent outer end; and wherein the two cages are spot-welded together.