# Tech on Torque

Discussion in 'Shop Talk' started by Farmer Brown, Sep 9, 2005.

1. ### Farmer BrownWell-Known Member

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71
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May 28, 2002
I'm abit unclear on torque measurment. Ft pounds and inch pounds. If you divide a inch pound number by 12 is that the foot pounds? A hyd motor I'm looking at puts out 1800 ft pounds----so times 12 is inch p ounds? Also, will running that motor thru a 3 to 1 gear reducer yield 5400 ft pounds torque, minus the normal loss due to friction, etc.? FB

2. ### fordyWell-Known Member

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9,333
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Sep 13, 2003
Location:
Whiskey Flats(Ft. Worth) , Tx
...................12 inch pds. = 1 ft. pd. of torque
...................are you sure that hydraulic motor puts out 1200 ft. pounds . of torque?? Most large diesel engines in 18 wheelers don't exceed 1500 ft. pounds. .........1800 inch pounds \12 = 150 ft. pounds . This sounds more realistic to me . fordy..

3. ### ozarks58Member

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23
Joined:
Jun 7, 2005
12,000 dollar motor on a drill rotation head designed to rotate a drill string with a weight of 30,000 pounds and a depth of 1000 plus ft. Powered by a variable volume pump for speed control. FB aka Ozarks58 (different computer)