POWER GENERATION UNIT AND BEARING UNIT

To provide a power generation unit which can further inhibit contact between an outer ring side member fixed to an outer ring of a baring and an inner ring side member fixed to an inner ring of the bearing, and to provide a bearing unit.SOLUTION: A power generation unit is provided between a housing and a rotary shaft which is located in the housing, supported by a bearing, and may rotate around an axis. The power generation unit includes: a plate-like cover which is fixed to the housing, extends to the radial inner side of the axis, and has a power generation coil; a magnet which is fixed to the rotary shaft, extends to the radial outer side of the axis, and is disposed facing the power generation coil in an axial direction of the axis; and an interposition part interposed between the cover and the magnet.SELECTED DRAWING: Figure 7 【課題】軸受の外輪に固定される外輪側部材と軸受の内輪に固定される内輪側部材との接触を、より抑制することが可能となる発電ユニット及び軸受ユニットを提供する。【解決手段】発電ユニットは、筐体と、筐体の内側に位置し軸受に支持されて軸心を中心に回転可能な回転シャフトと、の間に設けられる。発電ユニットは、筐体に固定され軸心の径方向内側に向けて延び、且つ発電コイルを有する板状のカバーと、回転シャフトに固定され軸心の径方向外側に向けて延び、且つ発電コイルと軸心の軸方向で対向して配置されるマグネットと、カバーとマグネットとの間に配置される介在部と、を備える。【選択図】図７