Cutting drum spindles - Team Camaro Tech
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post #1 of 26 (permalink) Old Jul 1st, 08, 09:12 AM Thread Starter
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Cutting drum spindles

Well I borrowed my neighbors band saw yesterday to attempt to cut the top boss off my drum brake spindles. I have read on here someone did it with a band saw and it cut like "butter". I bought a blade from Lowes, marked my .061" and went to cuttin'. Wouldn't budge. The blade barely scratched it before it went dull. Yes I put the blade on the right way. I guess I'm gonna have to take it to the machine shop and let him do it. He wants $60 for both. A bit high in my opinion.
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post #2 of 26 (permalink) Old Jul 1st, 08, 10:28 AM
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Re: Cutting drum spindles

I've cut a pair with a Hack-saw before - they aren't that hard ...
Must have been a bad blade or ???.
I'd try a decent "branded" (Rigid, Wayco, Olson ...) blade before giving up.
The blade will be less than the $60 the machine shop wants and you can return it with the good quality blade for the owner to continue using.

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post #3 of 26 (permalink) Old Jul 1st, 08, 01:27 PM
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Re: Cutting drum spindles

Find another machine shop. You need to make sure that when you cut the boss, that everything is square. I don't think many people can do that without a milling machine. I payed about 40 bucks to have both of mine cut, and they are perfect, they even bead blasted them for me for that price.
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post #4 of 26 (permalink) Old Jul 1st, 08, 02:12 PM
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Re: Cutting drum spindles

.061" is not the right number.
Should be .610" but this number can vary a little.

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post #5 of 26 (permalink) Old Jul 1st, 08, 06:26 PM
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Re: Cutting drum spindles

I'm a little clueless on this one. Why are you cutting them and where?

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post #6 of 26 (permalink) Old Jul 1st, 08, 06:57 PM
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Smile Re: Cutting drum spindles

You can tell where to cut them by mounting the caliper mount on the steering arm hole and rotating it over and marking the top bolt boss!

I'd use a cheap, HFT $10 to $14, 4.5" angle grinder and a several thin cutoff wheels before I'd pay that much!

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post #7 of 26 (permalink) Old Jul 1st, 08, 09:40 PM
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Re: Cutting drum spindles

Quote:
Originally Posted by johnny67 View Post
I'm a little clueless on this one. Why are you cutting them and where?
the top of the spindle where the bracket bolt goes sticks too far out on drum spindles to mount disc brakes. that boss is the only difference in the two types of spindles.
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post #8 of 26 (permalink) Old Jul 1st, 08, 11:43 PM
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Re: Cutting drum spindles

i did a set once, and i just mounted the caliper bracket on the the lower bolt and swinging it up to make a mark on the upper boss. i then mounted the other caliper bracket on lower hole on the opposite side of the spindle and scribed a line on the other side. i then used a straight edge to connect the lines i had made on opposite sides..

then it was time to break out the sawzall.. i cut it a bit high with that, and ground it down smooth with a 6 grit flapper wheel on my angle grinder. both sides wound up looking like a pro did it- andi think i had about 10 minutes total into each spindle..

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post #9 of 26 (permalink) Old Jul 2nd, 08, 10:35 AM Thread Starter
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Re: Cutting drum spindles

Quote:
Originally Posted by davidpozzi View Post
.061" is not the right number.
Should be .610" but this number can vary a little.

Thanks for the clarification. I had your print page printed out on my workbench when i was measuring, I just typed it wrong. I guess i need to go back and give it another try. Seems like there has been lots of success doing it. Thanks for all the input.
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post #10 of 26 (permalink) Old Jul 2nd, 08, 11:13 AM
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Re: Cutting drum spindles

You need a bi-metal blade with fine teeth, and slow speed.
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post #11 of 26 (permalink) Old Jul 8th, 08, 05:46 AM
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Re: Cutting drum spindles

I used a 4 1/2" grinder , patience to be accurate -wasnt hard. just dont grind it too far its hard to add material back. I Know a machinist that used to do this on a mill with a fluted cutter , he broke them often at 60$ ea its hard to make money doung that- used to machine chevyII spindles for discs - those spidles are very hard - dont waste time or $$ trying to cut them - use a grinder

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post #12 of 26 (permalink) Old Jul 8th, 08, 09:58 AM
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Re: Cutting drum spindles

This may sound dumb, but we are talking about a metal cutting bandsaw, not a woodworking type of bandsaw.

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post #13 of 26 (permalink) Old Jul 9th, 08, 05:05 AM
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Re: Cutting drum spindles

Quote:
Originally Posted by TJS69 View Post
This may sound dumb, but we are talking about a metal cutting bandsaw, not a woodworking type of bandsaw.
Not dumb at all, I have used both. I am a carpenter and that would make a huge difference. If the spindles are off the car this would work on the metal cutting bandsaw. On the car--I would use the sawzall and as mentioned above--must use a metal blade, the yellow, very thick demolition blades are best, they are not flimsy and dont flop around. I will be leaving a little material to grind off with a hand grinder, this is what Im doing on my car.

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post #14 of 26 (permalink) Old Jul 9th, 08, 09:48 AM
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Re: Cutting drum spindles

If anybody has pictures that would be great.

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post #15 of 26 (permalink) Old Jul 9th, 08, 03:32 PM
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Re: Cutting drum spindles

I think David P's great site may have the two different spindles posted in a pic?

Please check his web site.

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