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The main disadvantage is that belts wear over time, therefore belt replacement is recommended at specific intervals. [5] [6] Replacement of the engine's water pump at the same time is often recommended, since the water pump is also subject to wear and easily accessed during the replacement of the timing belt.
Round belts are a circular cross section belt designed to run in a pulley with a 60 degree V-groove. Round grooves are only suitable for idler pulleys that guide the belt, or when (soft) O-ring type belts are used. The V-groove transmits torque through a wedging action, thus increasing friction.
The efficiency is a function of the total losses in the fan system, including aerodynamic losses in the fan, friction losses in the drive (e.g. belt), losses in the electric motor, and variable speed drive power electronics. For more insight into how to maximise energy efficiency and minimize noise in fan systems, see ref.1
Brandon Kyle Belt was born on April 20, 1988, in Nacogdoches, Texas.Belt attended Hudson High School in Hudson, Texas, where he was a pitcher and outfielder.The Boston Red Sox selected Belt in the 11th round (343rd overall) of the 2006 Major League Baseball draft as a pitcher, but chose not to offer him the signing bonus that would make him forego his college commitment.