Tandem Roller. Monday , June 04th , 2018 - 15:02:22 PM
The next course (road base) would be compacted using a smooth single drum smooth tandem roller or pneumatic tyre roller in combination with a grader and a water truck to achieve the desired flat surface with the right moisture content for optimum compaction. Once the road base is compacted the smooth single drum compactor is no longer used on the road surface (There is however an exception if the single drum has special flat-wide-base tyres on the machine).
In the photo assuming the smallest gear is connected to the motor it is called the drive gear or input gear. The somewhat larger gear in the middle is called an idler gear. It is not connected directly to either the motor or the output shaft and only transmits power between the input and output gears. There is a third gear in the upper-right corner of the photo. Assuming that gear is connected to the machine s output shaft it is the output or driven gear.
An intermediate gear which does not drive a shaft to perform any work is called an idler gear. Sometimes a single idler gear is used to reverse the direction in which case it may be referred to as a reverse idler. For instance the typical automobile manual transmission engages reverse gear by means of inserting a reverse idler between two gears.
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