Carbon Fiber Expanding Shafts
DLB-2000 Carbon Fiber Expanding Core Shafts for Unwind and Rewind Applications. 
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Carbon fiber shaft body provides the strength of steel at a fraction of the weight.
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Proprietary corded polyprene internal bladder expands with air to force the lugs to grip the inner diameter of the core.
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The special bladder material reduces bladder failure and minimizes maintenance.
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Deep journal insertion and a close tolerance fit provide a high-strength connection, yet ensures easy maintenance access when necessary.
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Comprehensive two year warranty even includes bladder (most applications).
DLB-2000 Components
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Carbon fiber shafts have stainless steel air valves that will not corrode.
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Easy-access journal fastening system (no press fit).
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Gripping lugs.
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Proprietary corded polyprene bladder material minimizes bladder shaft failure and subsequent maintenance.
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Carbon fiber shaft housing can provide stiffness and strength equal to steel at a fraction of the weight.
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Metal sleeve protects carbon fiber shaft housing from abrasion.
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Hardened steel journals custom made for your machine
CF-1000 Dura-Light Non-Expanding Carbon Fiber Shafts (Through Shafts)
Used with core chucks to provide a lightweight shaft assembly (Double E manufactures a complete line of lightweight and durable core chucks.
Dura-Light Mechanical Carbon Fiber Expanding Lug Shafts
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For high speed and/or heavyweight applications requiring maximum torque capacity and minimum vibration.
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Mechanical design provides the most powerful gripping force possible.
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Activated by turning a crank (or impact wrench) that is inserted into the end of a journal.
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Requires just five cranks for full expansion.
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Lugs rise concentrically to center the carbon fiber shaft in the core, minimizing the roll bounce common with other types of expanding shafts.
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Mechanical shafts and pneumo/mechanical also are offered with the traditional steel design.