QD Weld-On Hubs

QD Type 1 and Type 2 weld-on hub families include EP-prefixed JA-A through S-A references. These hubs are used where a compatible QD bushing interface must be incorporated into a fabricated component. Match the QD size first, then verify hub outside diameter, length, drilling/mounting arrangement and weld preparation. Type 1 and Type 2 geometry should be confirmed before fabrication.