A spool (4) for a spinning reel is attached to a non-circular portion (15a) formed on a tip of a spool shaft (15). The spool shaft (15) moves back and forth but is prevented from rotating with respect to a reel unit (2). The spool includes a spool unit (7) and a bearing member (8). The spool unit (7) includes a bobbin trunk (7a) and a drag accommodation part (7d). The bobbin trunk is capable of winding a fishing line around its outer periphery. The drag accommodation part (7d) is formed on the inner peripheral side of the bobbin trunk (7a). The bearing member (8) is a tubular member made of synthetic resin. The bearing member rotatably supports the spool unit (7). The bearing member is arranged on the inner peripheral side of the bobbin trunk. The bearing member (8) has an engagement hole (8a) non-rotatably engaged with the non-circular portion (15a) of the spool shaft.
