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About Linear Shafts
Linear shafts are elongated, rod-shaped devices that provide linear or rotary motion for power transmission applications. They are used as axles, pistons, and rollers in heavy machinery. Some linear shafts have axial or radial holes for mounting to support structures. Others are grooved for the placement of snap rings or channeled for keyways. Solid or hollow linear shafts with male or female threads and stepped or chamfered ends are also available. Most linear shafts are made of aluminum, alloy steel, carbon steel, stainless steel, composite materials, or plastics. Alloy steel is harder than carbon steel and provides superior durability. Stainless steel is well-suited for applications in which corrosion resistance is an important consideration. Aluminum linear shafts provide good electrical and thermal conductivity, high reflectivity, and resistance to oxidation. Composite materials are often made of carbon fibers bonded together by resins. They are not as strong as metal shafts, but are lightweight and help reduce energy requirements.
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Engineering Web: Linear Shafts - Machine Design
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Pneumatic linear guides lighten loads | Machine Design Pneumatic linear guides lighten loads September 13, 2001 |
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A Critical Look at Acme, Ball, and Roller Screws for Linear... Resources: Tolomatic, tolomatic.com Leadscrew assemblies or drives are widely used to generate linear motion. |
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Rolling-ring linear actuators put friction to work | Machine... (www.amacoil.com), use compression and friction forces to smooth rather than impede linear motion. |
