Wheel rim base with disc 3309-3101015

The wheel rim base with disc 3309-3101015 is designed: 1. To absorb lateral, vertical and longitudinal forces from the road (through the pneumatic tyre) and transfer them through the fastening elements to the hubs of the front and rear wheels of the vehicle; 2. To transfer to the road (through the pneumatic tyre) the gravity force of the bus, traction and braking forces from the transmission and braking system. A wheel rim base with disc consists of a wheel rim base and a wheel disc joined together by welding. The wheel rim base has a special profile, with a seating shelf, on which a pneumatic tyre bead is mounted on one side and a lock groove on which a split bead ring is mounted, on the other side, a valve slot for mounting a valve of a tube tyre. The wheel disc has 6 fixing holes for mounting on the vehicle hub, one central hole and 4 ventilation windows.