To provided a bearing structure, which can be simply worked and reduced in its manufacturing cost.
The bearing structure 1 comprises a housing including a first housing portion 13 having a recess of a substantially semicircular section and a second housing portion 14 having a recess of a substantially semicircular section and forming a supporting hole 16 of a substantially circular section together with the recess 13a of the first housing portion 13; and two halved roller bearings 2 having a shaft 12 fitted therein including one set of two halved outer rings 3a, 3b arranged closely in the supporting hole 16 of that housing, a plurality of rolling elements 4 arranged to roll on individual inner sides faces of the two halved outer rings 3a, 3b, and one set of two halved retainers 5a, 5b for retaining the individual rolling elements 4 arranged substantially equidistantly in the circumferential direction. The internal diameter of the supporting hole 16 in the direction of the mating faces of the housing portions is made larger than the internal diameter in the direction displaced by 90 degrees from that of the mating faces.
YAMAKAWA KAZUYOSHI
SUZUKI MASAHIRO
| JP2006258138A | 2006-09-28 |
Next Patent: TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION