Posted by paul on September 08, 2010 at 10:16:16 from (76.77.197.242):
In Reply to: 540 vs. 1000 PTO posted by Bullfrog on September 08, 2010 at 09:22:06:
Comes down to a hp issue. Over 80 hp or so, a typical 540 pto stub/ shaft can break - more power than it can handle.
So if you spin the shaft 2x as fast, then you can now get up to about 175 hp before it becomes too weak.
Some implements need to spin fast; if 1000pto is available, then it takes less gearing to get it to spin that fast, so those implements like to use 1000rpm (cheaper to build) if it is available.
Not so much tho that one is better than the other.
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