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Steel Hubs
Quick Code: BB-561904
GF55-N Driveflex Steel Pilot Bore Hub - Standard Hub
The GF55-N Driveflex Steel Pilot Bore Hub is a high quality steel hub designed for use with nylon sleeve gear couplings. This standard length hub features a 25mm pilot bore and is suitable for a maximum shaft size of 55mm.
With a hub length of 60mm, this hub provides a sturdy and secure connection for transmitting torque and compensating for misalignment in mechanical power transmission applications. Key features include:
- Precision steel construction for reliable performance
- 25mm pilot bore for secure shaft connection
- Maximum shaft size capacity of 55mm
- Standard hub length of 60mm for balanced applications
- Driveflex brand quality and durability
This hub can be combined with a nylon sleeve and another identical hub to create a complete flexible coupling assembly for applications such as:
- Connecting drive shafts in large machinery
- Attaching motors to pumps or gearboxes
- Compensating for misalignment in powertrains
- Isolating vibration and dampening noise
- Heavy-duty industrial power transmission systems
- Hydraulic system applications
The GF55-N hub provides a reliable steel hub solution for creating flexible couplings to transmit rotational power and torque in industrial machinery and equipment. For a complete coupling assembly, you will need to purchase two hubs and one matching nylon sleeve.

