Posted by Bob M on December 05, 2012 at 11:28:02 from (69.207.86.27):
In Reply to: Why Triangular Tracks? posted by in-too-deep on December 05, 2012 at 10:41:19:
Primary reason is the elevated drive sprocket ("high drive") is it permits the use of planetary gear reduction at the track drive sprocket. This results in a stronger the final drive. It also makes it easier to maintain. And since the finals don't help support the weight of the of the machine it lessens wear and tear on the finals.
The disadvantage is tracks can wear faster as they must move over a 3rd sprocket. Also track replacement is more costly because the tracks are longer.
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