There are low gears and then there are low gears. ...
There are low gears and then there are low gears. This is the latter. Watch Unimog Super Crawler gear which makes this machine super slow, but practically unstoppable. YouTuber ExpedImports had a chance to walk us through the whole control system in an Unimog. And, it is a mess of controls, levers, and pulleys all of which do something really important.
After you watch it all through to the end, you may find yourself wanting the Unimog 416. It is unstoppable. Dull, in its slowness sure, but unstoppable nevertheless.
The maximum speed of the Unimog in its Super Crawler setting is only 0.08 mph. As Jalopnik points out that is three times slower than a sloth. But, you would be surprised of what it can be accomplished with 0.08 mph. When you do all the calculations it turns out that the latest Unimog U500 yields a maximum of over 2 million lb-ft of torque at the wheels. Astonishing stuff.
Jalopnik writer did the math and it goes something like this: “The “crawler” gear ratio—with the 5.575 “working gear” included—is 55.874, the rear axle ratio is 2.182, and the hub ratio (remember, this thing’s got portal axles), is 2.714. So if you multiply that all out—first gear ratio (9.570) times crawler gear ratio (55.874—this includes the working gear) times axle ratio (2.182) and finally times hub ratio (2.714), you end up with a crawl ratio of almost 3,200.
This means the engine’s torque (700 lb-ft at 1,200 rpm) gets multiplied by that value, yielding a maximum of over 2 million lb-ft of grunt at the wheels.”
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