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Alternative Design 2

This design, found on the Logisys LT80UVBL fan, is the simplest of all designs we saw, and we even question if it could be classified as fluid dynamic – in our opinion, it is a regular sleeve bearing. The only difference between this design and a regular sleeve bearing is the presence of two grooves alongside the exterior of the bearing. Differently from the alternative designs 1 and 3, the external groove is not connected to the ends of the bearing, so we wonder how the grooves would make the lubricant flow. The interior of the bearing is smooth.

Logisys LT80UVBLFigure 4: Alternative design 2 (Logisys LT80UVBL)

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Gabriel Torres is a Brazilian best-selling ICT expert, with 24 books published. He started his online career in 1996, when he launched Clube do Hardware, which is one of the oldest and largest websites about technology in Brazil. He created Hardware Secrets in 1999 to expand his knowledge outside his home country.