DOUBLE SIDED MULTI RIBBED BELT
Double Sided Multi Ribbed Belt : A serpentine style belt with grooves on both sides of the belt is called a double sided multi ribbed belt. A double sided multi ribbed belt used both sides of the belt with grooved pulleys to turn all of the engine belt accessories such as the ac compressor, alternator, air pump, power steering pump, water pump, tensioner puller and or idler pulley. Only a few auto manufacturers use double sided multi ribbed belts on their automobiles. These belts can be worn out and still look fine. A special tool is used to measure the wear of the belt groves to verify it is worn past specifications.