Patent ID: 9216648
Filing Date: 2015-12-22
Classification: B60B,B60K

Abstract:
1. A wheel driving device comprising an injection passage member of a medium injected into a wheel, the wheel driving device configured to drive the wheel by output rotation of a reduction device disposed on an inside in a radial direction of the wheel, wherein the reduction device includes an output member connected to the wheel, and a pair of bearings supporting the output member, wherein in the pair of bearings, the bearing on a side opposite to a vehicle body has a smaller outer diameter than that of the bearing on a vehicle body side, wherein the injection passage member is disposed on an outside in a diameter direction of the bearing on the side opposite to the vehicle body, wherein the bearing on the side opposite to the vehicle body and the injection passage member are overlapped when they are viewed from a radial direction, and wherein the bearing on the side opposite to the vehicle body is smaller than the bearing on the vehicle body side in a contact angle.