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Originally Posted by ThunderCactus
Very nice restoration. I've helped my friend's dad out with 2 of his challengers and 2 cuda's. Tough work, sheet metal sucks to work with especially when you're making body panels from scratch lol
I just rebuilt a live tooling drive on a ~$300,000 lathe a few weeks ago. It uses all very high precision (and very expensive) bearings.
There's a science to where they're positioned, what type of bearing is used, how much and what kind of grease is used in the bearings, and especially how they're mounted.
You find it odd we hammer on high precision bearings, but there's no shock trauma to the races or balls when we tap a bearing onto a shaft. Especially if you're doing it right and heat the bearing to just slip it onto the shaft.
$4,000 worth of 9 bearings, you get one backwards, hammer one on an outside race when you should have hit the inside race, don't squish the angular bearings together just right, or use the wrong grease, and it's the difference between 8 years of trouble free running and a breakdown after just 2 weeks.
I know it's difficult to believe, but the grease really does circulate in the bearings, and too much grease will actually cause them to burn out faster.
Under normal operation, it doesn't get burned out unless something else has already failed. Most common in my industry is washout; a seal fails and machine coolant washes the grease out of the bearings and they eventually overheat from lack of lubricity and burn out.
All those big industrial lathes and milling machines mainly use grease packed bearings in their spindles. It's only when they do high rpm that they use constant flow air/oil lubrication.
And the higher precision/faster the bearing, the easier it is to wreck from mechanical shock. With 30,000rpm spindles, you crash that thing once and you need a new spindle.
Vehicles use tougher, low rpm bearings and the suspension takes a lot of the impact, that's why we don't have to replace wheel bearings every 2 weeks in winnipeg lol
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Or freeze the shaft on one cold December day just put it on a pallet and bring it outside for 40-60 minutes
, but I know time is money, and well a rubber mallet is sometimes the only way. So I completely hear you
and to finish of this thread and small repair work, I finally have the last piece made out of steel for my Masada.
I hope you all enjoy.
This last piece which broke at my local season opener is none other then the Slide release on the bottom of the gun. This piece again is more or less like the other other above, and i believe A&K, along with cyber gun should produce replacements for both of these parts, sadly that may not be the case.
Something else I was trying to show case with these small sized repairs. Is you don't need to have hundreds and thousand dollar pieces of equipment. Sometimes all you need is some creativity, some great planning, the basic tools, like a welder, file just to name a couple and you can make a replacement that will last years to come.