| 摘要 |
The present invention provides a boot for a constant velocity universal joint in which a portion of the boot does not interfere with an ear section of a boot band even when the joint is at a high operating angle. The present invention is the boot for a constant velocity universal joint housing a torque transmitting component between an outer joint component and an inner joint component and in which a shaft connected to the inner joint component extends outside of the joint. The boot is disposed between an outer circumference of the outer joint component and an outer circumference of an intermediate section of the shaft. The boot includes a cylindrical large diameter section 1a that is fixed onto an outer circumferential surface of an outer joint component 2 by a boot band 3, a cylindrical small diameter section that is fixed onto an outer circumferential surface of the shaft, a bellows section 1d that connects the large diameter section and the small diameter section, and a shoulder section 1c that is provided between the large diameter section and the bellows section and covers an opening end side outer circumferential surface of the outer joint component. The shoulder section 1c is extended by a predetermined length from the boot band 3 to an opening end side of the outer joint component.
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