Non-symmetric ball bearing system for turbocharger

A number of variations may include an outer race (12) having a first inner circumferential surface defining a first passage, a first inner race (18) defining a second passage and a second inner race (22) defining a third passage, wherein the first inner race and second inner race may be disposed within the first passage and may include a first plurality of ball bearings disposed at a first contactangle between the first inner race and the outer race and a second plurality of ball bearings disposed at a second contact angle between the second inner race and the outer race, and the outer race may include a first outer circumferential surface defining at least a first oil jet constructed and arranged to provide a lubricant to the first plurality of ball bearings, and at least a second oil jet constructed and arranged to provide a lubricant to the second plurality of ball bearings. 许多变型可包括具有限定第通道的第内圆周表面的外座圈(12)、限定第二通道的第内座圈(18)和限定第三通道的第二内座圈(22)，其中第内座圈和第二内座圈可被设置在第通道内，并且许多变型可包括以第接触角设置在第内座圈与外座圈之间的第多个滚珠轴承以及以第二接触角设置在第二