To provide a pulley for driving force transmission capable of smoothly operating upon a second shaft member sliding on an outer peripheral face of a first shaft member while dispensing with the sealing of grease.

The pulley for driving force transmission for transmitting driving force of a vehicle includes a fixed sheave 2, a movable sheave 3 rotatable with the fixed sheave 2 while suspending an endless belt 13 between a fixed side tapered face 2a and a movable side tapered face 3a and capable of approaching or separating from the fixed sheave 2, a cylindrical first shaft member 8 which constitutes a rotary shaft of the fixed sheave 2, and a cylindrical second shaft member 9 in which the first shaft member 8 can be inserted, which is slidable on the outer peripheral surface of the first shaft member 8, and which constitutes a rotary shaft of the movable sheave 3. An oil retaining bush 12 is disposed on a sliding face between the second shaft member 9 and the first shaft member 8.