WEBBING TAKE-UP DEVICE

A webbing take-up device includes a spool, a lock base, and a lock member. The lock base includes a lock base body equipped with a load bearing portion, and a shaft portion. The lock member includes a shaft portion insertion hole for insertion of the shaft portion, and on actuation displaces from a housed position to an engaged position to limit rotation of the spool in the pull-out direction. Shapes and dimensions of the shaft portion and the shaft portion insertion hole are set such that, when a load accompanying pull-out of the webbing from the spool has been input from the lock member positioned at the engaged position to the lock base, the load is input from the lock member to the load bearing portion and an outer peripheral face of the shaft portion and an inner peripheral face of the shaft portion insertion hole are separated from each other.