To prevent or suppress seizure by eliminating the contact of adjacent balls when arranging a plurality of the balls in a continuous state, in a bearing device for an automobile slide door.SOLUTION: A bearing device for an automobile slide door is provided that is composed of: an outer ring member 34 in which an annular raceway surface 46 is formed; a large ball 36 which is arranged so as to partially protrude from the inside of a recess 42 of the outer ring member 34, and rolls on a load support raceway surface 18; a plurality of small balls 38 arranged between the raceway surface 46 and a spherical surface of the large ball 36; and a cage 40 arranged between an inner circumferential surface 44 of the outer ring member 34 and the spherical surface of the large ball 36, and holding the small balls 38 in a plurality of pockets which are formed with prescribed intervals.SELECTED DRAWING: Figure 3
【課題】自動車のスライドドア用軸受装置において、複数の玉を連なった状態として配設する場合に、隣接する玉同士の接触をなくすることにより、焼き付きを防止ないし抑制する。【解決手段】自動車のスライドドア用軸受装置であって、環状の軌道面46が形成された外輪部材34と、外輪部材34の凹部42内から一部が突き出すように配置されて、荷重支持軌道面18上を転動する大玉36と、軌道面46と大玉36の球面との間に配置された複数個の小玉38と、外輪部材34の内周面44と大玉36の球面との間に配置され、所定の間隔を置いて形成される複数個のポケットに、小玉38を保持する保持器40とからなる。【選択図】図3
BEARING DEVICE FOR AUTOMOBILE SLIDE DOOR
自動車のスライドドア用軸受装置
2019-06-06
Patent
Electronic Resource
Japanese