Both pathology have been attributed to damage by free radicals, there has been a great deal of interest in antioxidants. Bilberry's flavonoids are known as potent antioxidants, scavenging free radicals and used for multiple age-related ocular disorders. Thus, bilberry may have health benefits on these conditions.
Tensioner pulleys and idler pulleys keep the belt taut and running smoothly. The accessory pulleys have to spin a certain direction to power their respective parts. This determines whether they ârideâ on the inside or outside of the belt.
A pulley is  a wheel on an axle or shaft that is designed to support movement and change of direction of a taut cable. The supporting shells are called blocks. A pulley may also be called a sheave or drum and may have a groove or grooves between two flanges around its circumference.