Bogie frame, bogie, rail vehicle, and rail transit system

A bogie frame (100) and a bogie for a rail vehicle, a rail vehicle, and a rail transit system. The bogie frame (100) comprises: a frame body (10), the frame body (10) being provided with a travelling wheel mounting opening (11) which extends along an up-down direction and is used for mounting a travelling wheel (201); a magnetic levitation mounting part (20), the magnetic levitation mounting portion (20) being connected to the frame body (10) to mount a first magnetic levitation module (21); and a driving member mounting part (30), the driving member mounting part (30) being connected to the frame body (10), and the driving member mounting part (30) being used for mounting a travelling wheel driving member connected to the travelling wheel (201).