The Fusion Rubber Bush is a replacement component for the Threeworlds Fusion pressure-fit connector system. These rubber bushes compress as a Fusion connector is tightened, creating friction against the inside of the staff tubing and helping hold your collapsible staff securely together.
Because the rubber bushes are responsible for creating much of the grip within the pressure-fit connection, their condition and cleanliness can have a noticeable effect on how securely your staff tightens.
How Fusion Rubber Bushes Work
As you tighten a Fusion connector, the rubber bushes compress and expand outward against the inside wall of the staff tubing. This creates the friction that helps lock the connected sections together.
The bushes work alongside Fusion Nylon Washers, which alternate with the rubber bushes inside the pressure-fit assembly.
Where Fusion Rubber Bushes Are Used
Fusion Rubber Bushes are used throughout the Fusion pressure-fit system. The number required depends on the component:
- Fusion Staff Handle: 4 rubber bushes total, with 2 bushes at each end alternating with 2 nylon washers
- Fusion Spin Handle: 4 rubber bushes total, with 2 bushes at each end alternating with 2 nylon washers
- Fusion Ultra Dragon Hub: 2 rubber bushes alternating with 2 nylon washers
- Fusion Double Adapter: 4 rubber bushes total, with 2 bushes at each end alternating with 2 nylon washers
- Fusion Quick Release End Cap: 2 rubber bushes alternating with 2 nylon washers
If Your Fusion Connector Isn’t Tightening
If a Fusion connector feels like it isn’t gripping or tightening properly, check the rubber bushes and the inside of the staff tubing before assuming something is broken. Dust, dirt, oil, or other residue on either surface can reduce friction and prevent the pressure-fit mechanism from gripping as securely as it should.
Both the rubber bushes and the inside surface of the tube where the connector is inserted should be kept clean, dry, and free of oily residue. The bushes should also be inspected for wear or damage and replaced when necessary.
For more information on assembly, adjustment, and troubleshooting, read our Guide to Fusion Pressure-Fit Connectors.
Replacement Parts Sold Individually
Fusion Rubber Bushes are sold individually, allowing you to replace only the number needed when servicing your Fusion hardware. If you’re taking apart a connector for maintenance, it’s worth checking the bushes and nylon washers at the same time so the entire pressure-fit assembly is in good condition.










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