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Author Topic: Would the rear drum brake be safe to cook?  (Read 985 times)

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Offline turkey2143

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Would the rear drum brake be safe to cook?
« on: January 19, 2010, 10:01:54 PM »
I'm going to get the drum body powder coated black and I was wondering if anyone knew if I have to take out any parts like the brake pads before they go in a 300 degree oven. They're made out of asbestos so they can take it right? The same goes for the front hub, is there any rubber between the bearings?

Any input would be appreciated,
Thanks
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Offline shizzomynizzo

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Re: Would the rear drum brake be safe to cook?
« Reply #1 on: January 19, 2010, 10:07:50 PM »
It's a brake...and I would assume it gets very hot from normal use.

I baked mine at 200-250 when I painted it. No problems thus far
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Offline Bodi

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Re: Would the rear drum brake be safe to cook?
« Reply #2 on: January 20, 2010, 11:03:56 AM »
Once you remove the bearings there is nothing but metal.
heating the rear hub should cause no trouble, the brake drum is either cast into the alloy part or pressed in and it is not going to fall out.
You will probably need to remove the bearings before coating. They may seep some grease when they heat up, ruining the coating. You should replace them anyway after 35+ years! Use double sealed (2RS or DD) bearings, the originals are single sealed but I have never gotten a good reason for not using fully sealed bearings which will retain the lubricant basically forever.
« Last Edit: January 20, 2010, 11:05:30 AM by Bodi »
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Offline MCRider

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Re: Would the rear drum brake be safe to cook?
« Reply #3 on: January 20, 2010, 11:13:58 AM »
What they've all said...

The "pads" are shoes which are not part of the hub/drum, they go with the backing plate. FYI: They haven't used asbestos for brake shoes in many years, though yours may be. Its nasty stuff.

I'd take out the bearings fo sho, they will likely bleed grease at least and may get ruined.

Ask the powder coater what they think about it. The drum part is steel and is pressed into the aluminum hub. Different coeficients of expansion, but at those temps probably OK. Warping the drum is possible, at some point.

No there is no rubber between the bearings.
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Offline tlbranth

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Re: Would the rear drum brake be safe to cook?
« Reply #4 on: January 20, 2010, 02:11:59 PM »
Bodi, the original bearings were actually 'shielded' on one side. New bearings can be had 'sealed'. And you're right, they should stay lubed forever - or a long time, whichever comes first.
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Offline Don R

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Re: Would the rear drum brake be safe to cook?
« Reply #5 on: January 20, 2010, 02:59:43 PM »
They will never get tender no matter how long they cook. ;D
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Offline jimmiejoe

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Re: Would the rear drum brake be safe to cook?
« Reply #6 on: January 20, 2010, 08:14:58 PM »
Quote from: Don R on January 20, 2010, 02:59:43 PM
They will never get tender no matter how long they cook. ;D

Yeah leave the grease in and you just made a mess Then go ride a few miles before it start's  squilling like a dry up pig
It's so easy to tap the bearing out save it, check it, or replace  that would be my choice they are still pretty cheap to purchase
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