CPC F16H 57/033 (2013.01) [B60K 1/00 (2013.01); B60R 16/0239 (2013.01); F16H 48/42 (2013.01); F16H 57/021 (2013.01); F16H 57/037 (2013.01); H02G 3/22 (2013.01); H02K 5/1737 (2013.01); H02K 5/225 (2013.01); H02K 7/006 (2013.01); H02K 7/088 (2013.01); H02K 7/116 (2013.01); B60K 2001/001 (2013.01); B60K 2001/006 (2013.01); B60K 11/02 (2013.01); B60K 17/165 (2013.01); B60Y 2400/73 (2013.01); F16H 2057/02034 (2013.01); F16H 2057/02052 (2013.01); F16H 57/032 (2013.01); F16H 2057/0335 (2013.01); F16H 57/0483 (2013.01)] | 19 Claims |
1. An axle assembly comprising:
an axle housing;
a differential carrier that is mounted to the axle housing and is made of a first material; and
a bearing support wall that is mounted to the differential carrier, wherein the bearing support wall receives and rotatably supports a drive pinion, is received inside and rotatably supports a rotor of an electric motor module, and is made of a second material that has a greater stiffness than the first material, wherein the bearing support wall is received inside a rotor bearing that rotatably supports the rotor, the rotor bearing has a rotor bearing coefficient of thermal expansion, the first material has a first coefficient of thermal expansion, the second material has a second coefficient of thermal expansion, and the rotor bearing coefficient of thermal expansion is closer to the second coefficient of thermal expansion than the first coefficient of thermal expansion.
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