| 摘要 |
A ratchet one-way clutch comprises an inner race and an outer race coaxially arranged to be relatively rotative; a pawl member arranged between the inner race and outer race to be fitted into a recessed portion provided for the outer circumferential face of the inner race or the inner circumferential face of the outer race for transmitting torque; a spring for biasing the pawl member to the recessed portion; and a bush for supporting the pawl member and spring and for providing a bearing between the inner race and outer race. For this clutch, a recessed portion is formed on an inner circumferential face of the bush.
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