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Old 03-17-2018, 06:18 AM   #61
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The assumption that the brakes were reinstalled incorrectly is not supported by the statements of fact made by the OP. The fact that he traveled 6,000 miles after servicing the bearings makes that scenario very unlikely.

Improperly installed brakes will almost certainly not travel 6,000 miles before manifesting themselves. A deployed drum brake will boil the grease out of the hub in very short order. It will also scrub the friction lining off rather quickly. There would be no friction material (or metal backing, for that matter) left after just a few dozen miles.

A spring broke, the shoe engaged the drum and heated the grease sufficiently that it ran out. Bearing failure occurred shortly thereafter. A simple failure of a piece of (Chinese) spring steel and a lighter wallet. No need to point fingers or assign blame. IMHO

Safe travels
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Old 03-22-2018, 08:53 PM   #62
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Ha! Im at Chabot Campground right now. Full hookups. 100s of eucalyptus tall trees. Beautiful. Peaceful. Way, way into the hills behind Oakland.
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Old 06-10-2018, 01:40 PM   #63
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Quote:
Originally Posted by FleckDreher View Post
The explanation I have put forward is the answer to a practical problem, not a theoretical argument.
The transient flow in the system is on the order of micro-liters per unit time, practically "zero" flow.
It is insufficient to provide adequate thermal energy for convection to be the thermal transfer mechanism.
In addition the orifice restriction in the system (the valve core) is a practical limit to any convective flow, and consequently thermal transfer due to the convective mechanism.

I repeat, there is "no flow", and there is "no convective thermal transfer".
BUT.... No one has entered into the equation infrared radiation. Heat can move from place to place via infrared radiation. Anyone have a space heater that looks like a radiator and has no fan? Does it warm up the space and objects around it?
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