Comments by "mpetersen6" (@mpetersen6) on "Schweinfurt Raid - Impact on Panzers? Featuring @MilitaryAviationHistory" video.

  1. Another thing that needs to be remembered here. Anti-friction or rolling element bearings, which includes Ball Bearings, Tapered Roller Bearings, Cylindrical Roller Bearings, Thrust Bearings, Angular Contact Bearing have standard sizes that can be broken down into various series, groups and classes. As an example. A common 6210 ball bearing. The 6 means it is a radial type design. It carries the load at right angles to the axis of rotation, the 2 means it is a 200 series bearing. This means the OD and width are drawn from a set of dimensional standards in relation to the ID. The 10 means it has a 50mm ID. It doesnt matter who made the bearing they are interchangeable. Another thing. While a ball bearing has balls in it. The balls themselves are not called ball bearings. The are simply steel balls manufactured to a certain tolerance. Once the balls, the cage that holds the balls and the inner and out races are combined into an assembly does it become a ball bearing.
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  2. Destroying a factory building is one thing. Destroying the heart of the factory, the Machine Tools, is an entirely different matter.
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