CONICAL ROLLER BEARING

To provide a conical roller bearing of a structure to prevent loosening of segments of a segment cage even when an inner ring assembly is reversed in assembling the inner ring assembly to an outer ring and to prevent falling-off of conical rollers from pockets of the segments.SOLUTION: Pockets 16 positioned at circumferential end portions among the pockets 16 housing conical rollers 15 are provided with guide claws 24 at an outer diameter side of opposed pillar portions so that the conical rollers 15 can be inserted therein from an inner diameter side, and pockets 16 positioned at circumferential end portions are provided with guide claws 24 at an inner diameter side of the opposed pillar portions 23 so that the conical rollers 15 can be inserted from an outer diameter side. Falling-off prevention members 32 for preventing falling-off of the conical rollers 15 housed in the pockets 16 at both ends to an outer diameter side, are disposed separably from a large end face-side of the inner ring 11 and are fixed to a large diameter-side side face of a large diameter-side arc-shaped portion 22 of the segment 20 by inserting a connection member 25 wound on a large diameter side of each of annularly arranged segments 20 to an engagement portion 27.SELECTED DRAWING: Figure 3 【課題】 内輪アッシーを外輪に組込む際に、内輪アッシーを反転させても、セグメント保持器のセグメントがばらけることなく、セグメントのポケットから円すいころが脱落しない構造の円すいころ軸受を提供する。【解決手段】 円すいころ１５を収容するポケット１６のうち、周方向の端部に位置するポケット１６は、対向する柱部の外径側に案内爪２４を設けて円すいころ１５を内径側から挿入可能とし、周方向の端部に位置するポケット１６は、対向する柱部２３の内径側に案内爪２４を設けて円すいころ１５を外径側から挿入可能とし、両端のポケット１６に収容された円すいころ１５の外径側への脱落を防止する脱落防止部材３２を、内輪１１の大端面側から抜き差し可能に設け、セグメント２０の大径側弧状部２２の大径側側面に係合部２７に、環状に配置した各セグメント２０の大径側に巻き回される連結部材２５を通して固定した。【選択図】 図３