View Full Version : anybody got a spare flywheel?

11-27-2010, 11:38 AM
I dropped the flywheel to my compressor while moving it and it cracked...

I tried the ebay and craigslist.. but no luck.. maybe using the wrong terms...

14" with is a 1.5 bore double V

Where to look?

11-27-2010, 11:49 AM
Look in the boneyard of a compressor repair company.

11-27-2010, 12:11 PM
Brase or weld the crack. Many a machine running for decades with repairs.


11-27-2010, 12:50 PM
I dont think I mind the repair (dont have anything to do it with, could call on a friend but I have slightly abused his services lately), but was concerned with the weighting and throwing the thing off balance some...

Mark Hockett
11-27-2010, 03:31 PM
I have one off of a sanborn compressor, I will try to get some dimensions when I get back to the shop today.

11-27-2010, 04:15 PM
If it's the flywheel, it's turning at crankshaft speed.

You balance a motorcycle crank because it's doing 6000rpm and some, and you're sitting on it.

Your compressor crank is doing more like 1000rpm, and you're not sitting on it (I hope !). I wouldn't have thought a bit of unbalance from 1/2oz copper, or even from a 5 thou misalignment, would make it start jumping all over the place.

Anyway, if it does turn out to walk across the floor, you can do a static balance on it with an axle and a pair of rough and ready knife edges. If the weld/braze is out of alignment, you can remachine the circumference. Shouldn't take too long - it's all rough machining.

You gotta pay for your mistakes, after all ! Bad luck.

11-27-2010, 04:22 PM
I have a 16" double "v" could be bored out to 1.5" Off a freon compressor. Have the compressor too if anyone wants it. Peter

11-27-2010, 08:14 PM
Surplus Center:

13.75" double pulley (https://www.surpluscenter.com/item.asp?item=1-2BKH140&catname=powerTrans) - $58.00

1.5" hub (http://www.surpluscenter.com/item.asp?item=1-2913-150&catname=) - $4.49

Cheapest place I have found for larger size pulleys. Local place wanted over $300 for similar pulley.

11-27-2010, 08:15 PM
Free, just pay for shipping, Peter (tried answering your email and it couldn't be delivered)

11-27-2010, 08:21 PM
One to store away:



11-29-2010, 02:25 PM
Rob, take a look at this site, should be what we were looking for. Peter

11-29-2010, 02:36 PM
I've got a 15" double V with a 1.25" bore taper lock hub that can be bored out.

Yours for the shipping.