Key bar inflatable shaft:
- Application: Lug type air Expanding shaft are often used in situations where the transmission torque is relatively large, such as industrial machinery and automotive transmission systems.
- Advantages: Good transmission torque and rigidity, able to withstand high loads. Its keyway design makes it easier to install and remove.

Through-key inflatable shaft:
- Application: multi bladder type air expanding shaft are often used in scenarios that require frequent loading and unloading, such as printing machinery and textile machinery.
- Advantage: The push-through inflatable shaft has quick and easy installation adjustment and can be adapted to different diameters of paper rolls or yarn tubes. It provides reliable transmission torque and maintains a stable roll or tube position.

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