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发明授权
CN101395404B 轮内电动机驱动装置 失效 - 权利终止

轮内电动机驱动装置
摘要：
本发明涉及一种轮内电动机驱动装置(21)，其具有外壳(22)、电动机部(A)、减速部(B)、轮毂(31)、支承轮毂(31)而使其相对于外壳(22)旋转自如的轮毂轴承(33)。轮毂轴承(33)包含：设于外壳(22)的内径面上的第一及第二外侧轨道面(33a、33b)、设于车轮侧旋转部件(30)的外径面上且与第一外侧轨道面(33a)相对的第一内侧轨道面(33c)、设于轮毂(31)的外径面且与第二外侧轨道面(33b)相对的第二内侧轨道面(33d)和配置在外侧轨道面(33a、33b)和内侧轨道面(33c、33d)之间的多个滚动体(33e)。
摘要（英）：

An in-wheel motor drive unit (21) comprising a casing (22), a motor unit (A), a decelerating unit (B), a wheel hub (31), and a wheel hub bearing (33) for rotataly supporting the wheel hub (31) on the casing (22). The wheel hub bearing (33) includes first and second outside raceway surfaces (33a, 33b) provided on the inner diameter surface of the casing (22), a first inside raceway surface (33c) provided on the outer diameter surface of a wheel-side rotating member (30) to face the first outside raceway surface (33a), a second inside raceway surface (33d) provided on the outer diameter surfaceof the wheel hub (31) to face the second outside raceway surface (33b), and a plurality of rolling elements (33e) disposed between the outside raceway surfaces (33a, 33b) and the inside raceway surfaces (33c, 33d).

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