SO torque multiplier GA185

[ears]

SO GA185 4x torque multiplier. 3/4 input 1" output 2000 ft/lbs. max. Works well guts are in good shape has some rust and grind marks the handle is engraved. 26" overall length. $150 shipped to the US.

Lost a pic somehow the grind marks are identical on both sides.

 

[back2class]

I'll take that
Shoot me a PM with payment info.

 

[Zrexxer]

I'll take that
Shoot me a PM with payment info.

Glad you did, I was about to have to!

 

[Snappy]

Glad you did, I was about to have to!

Me too .........
I like the pic of the guts inside that thing.

 

[bmwpower]

Interesting...

So 4 gears = 4x torque multiplier?

150 ft-lbs x 4 = 600 ft-lb

Now I can see why you jumped on it!

 

[tjmonsen5]

wow thats pretty cool, never knew something like this existed!

How exactly do you know how much torque you are applying though?

 

[bmwpower]

wow thats pretty cool, never knew something like this existed!

How exactly do you know how much torque you are applying though?

put a torque wrench on it.
input torque x 4 = output torque

 

[ProGun3400]

We have the identical multiplier at work. A smokin deal on that one.

 

[peter_x]

Interesting...

So 4 gears = 4x torque multiplier?

No... it's about the size of the gear, not the number of planets. It's a planetary gearset just like an automatic transmission (except transmissions usually only have three planets).

 

[medinacaver]

Please excuse my ignorance on the subject,

could you provide some explanation regarding the 3/4" input 1" output. I take it the drive is 1", where is the input size.

Also counting the gearing
Housing Gear (head) = 42 teeth
Planetary Gears (each) = 14 teeth
Drive gear = 14 teeth

1 revolution of housing = 3 revolutions of drive, correct. Looks more like a speed mutiplier than a torque multiplier

again looking for an explanation to how it works

 

[Mike83]

It's like a bicycle when you have the small ring in front and big ring in back - lots of pedal cranks to move the wheel one revolution, but LOTS of torque output (more likely to break something like your chain).

Generally there is about 10-15% loss through friction on those torque multipliers.

 

[norry]

Aaaaargh, was looking for one of these too! Oh well, maybe next time.

 

[DynoDale]

Please excuse my ignorance on the subject,

could you provide some explanation regarding the 3/4" input 1" output. I take it the drive is 1", where is the input size.

Also counting the gearing
Housing Gear (head) = 42 teeth
Planetary Gears (each) = 14 teeth
Drive gear = 14 teeth

1 revolution of housing = 3 revolutions of drive, correct. Looks more like a speed mutiplier than a torque multiplier

again looking for an explanation to how it works

http://en.wikipedia.org/wiki/Planetary_gear

 

[JSBriggs]

Please excuse my ignorance on the subject,

could you provide some explanation regarding the 3/4" input 1" output. I take it the drive is 1", where is the input size.

Also counting the gearing
Housing Gear (head) = 42 teeth
Planetary Gears (each) = 14 teeth
Drive gear = 14 teeth

1 revolution of housing = 3 revolutions of drive, correct. Looks more like a speed mutiplier than a torque multiplier

again looking for an explanation to how it works

The handle is for holding the head from turning. You put a 3/4" drive ratchet in the top of the head and turn the ratchet. This multiplies the torque and drives the 1" output.

-Jeff

 

[flashpuppy]

DAG NAB IT!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Someone just got a deal.......

 

[medinacaver]

Thanks for sharing the explanations. After my first reply, I googled and wiki'd and such. Lots of info out there.

I love learning about new stuff. Well new to me anyways. Its what brings me back to this site time and again

I really enjoyed finding the site where they showed some guy removing a nut the size of a bowling ball of an earth mover. I think the system cost about $3000.

I agree with others, this was a great deal.

 

[back2class]

Got it today. Looks better in person and this is one mean MO-FO!