Universal joint and propeller shaft

A universal joint, comprising:

• a first yoke and a second yoke, each comprising a based end portion, and a pair of arm portions having a shaft hole and extending from both sides of the base end portion, and
• a spider having a first shaft fitted into the shaft hole of the first yoke and a second shaft fitted into the shaft hole of the second yoke,
• wherein the universal joint further comprises a flexing limiting portion, which limits a flexing angle of the universal joint due to mutual contact of the base end portion and the spider when at least one yoke among the first and second yokes is flexed to a predetermined angle, wherein, a bearing is provided between the spider and the shaft hole,
• wherein the spider is formed with a flange portion supporting a sealing member for the bearing, and
• wherein the flexing limiting portion on a side of the spider is constituted with a protruding portion formed at the one of the yokes and a flange portion of a shaft which pivotally supports the other yoke wherein the sealing member is provided at an end of the bearing, and
• wherein the protruding portion is configured to engage with a circumferential surface of the flange portion.