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1. ## Killer Smoker

My buddy shared a few pics of his smoker. It is heavy duty as you will see but for those that do a lot of smoking, this is it and it looks simple enough to make. It has 6 shelves inside that rotate at 1 rpm on a 1/4 HP gear motor, roller chain.

2. Very nice rig.

Any chance you know the rpm of the 1/4 hp motor. The reason I ask is that on our rig we have a 40 to 1 reduction box and also a giant to small gear on the chain set. I dont think we are down to 1 turn per minute but would like to.

Here is the drive.

And here is the insides if anyone has thoughts of making a rotisserie in the future.

3. Originally Posted by tom37
Very nice rig.

Any chance you know the rpm of the 1/4 hp motor. The reason I ask is that on our rig we have a 40 to 1 reduction box and also a giant to small gear on the chain set. I dont think we are down to 1 turn per minute but would like to.

Here is the drive.

And here is the insides if anyone has thoughts of making a rotisserie in the future.

normally motors like that are 1725-1750 RPM very few are 3600 RPM

so by just having a quick look at your drive train looks kinda like you Should be around .75 to 1 RPM by now unless your motor is a 3600 then you will be around 1.5 to 2 RPM

how i got this was by looking at your picture

motor 1750 gear box 40:1

so take 1750/40 = 43.75 RPM ( if it was direct drive into the gear box)

since its not here is another reduction just guessing at size of pulleys the one on the input side of the gear box looks about 3 times the size of the one on the motor so: 43.75/3 = 14.58 RPM coming out of the gear box output shaft

OK now the final drive looks very large compared to the arch in the chain going around the gear box shaft

so just guessing its around 10:1 to 15:1

so then take 14.58/10 = 1.5 RPM or 14.58/15 = .97 RPM

if you can give me all the numbers I can tell you just how fast it is going right down to feet per min that the inside rack is going.

Now are you sure that the gear box is 40:1 for sure?? (not saying you don't know, just checking)

god i love numbers 1+1 is always 2, it all in how you get there....

Railmen.

4. Thanks Railman,

I will try to get the tooth count next weekend and also double check the reduction ratio along with the tooth count between the motor and the box. The smoker is at a storage right now.

I do appreciate the knowledge. Thanks.

Tom

5. Originally Posted by tom37
Thanks Railman,

I will try to get the tooth count next weekend and also double check the reduction ratio along with the tooth count between the motor and the box. The smoker is at a storage right now.

I do appreciate the knowledge. Thanks.

Tom
Sure No problem man....

Railmen

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