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  1. #46
    Join Date
    May 2005
    Location
    Cockatoo Vic
    Posts
    996

    Default

    Always amuses me when people lump 1.35 billion people into one identity. They did this....they did that...

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  3. #47
    Join Date
    Feb 2004
    Location
    Oxley, Brisbane
    Age
    79
    Posts
    3,041

    Default

    OK, In this instance I was referring to the Chinese government being actively complicit in an attempt to deceive the rest of the world into believing that these bearings are actually made in Germany.

    It's a bit like American "World Championship Wrestling" that only has Americans in it. The words are meant to deceive.

    In any case, do you really expect me to name the owners or founders of the business and then go to all the effort of maybe differentiating between this Mr Yu and that other 100,000 Mr Yu(s)?

    No, it is far easier and just as accurate to say 'The Chinese". I am fairly certain that readers of this board have more than enough nouse to realize that not every Chinese person in the world is involved in this shorthand description.
    Bob Willson
    The term 'grammar nazi' was invented to make people, who don't know their grammar, feel OK about being uneducated.

  4. #48
    Join Date
    Jan 2009
    Location
    near Cooyar, (Toowoomba-ish), Qld
    Age
    59
    Posts
    221

    Default

    Reading the first page of replies here, about the expected lifespan of the bearings gave me a fright - 25 hours life!
    Our router has a Perske 3hp spindle (aircooled). It was 19 years old when we bought it 7 or so years ago.
    About 3 years ago the bearings were getting a bit noisy and the collet was getting hotter than I was happy with so we took the bearings out to get new ones.

    Yes, I needed a chair to sit on - ceramic bearings - a big one at the bottom and a small one at the top - close to $240 & $100 for the pair.
    At any rate, considering the age of the router, and the use we give it, I figured that was a fair investment - plus a cartridge of super high speed high temp grease.

    It was a bit of a chore getting them off, and replacing them, but it's all done, and there's no apparent runout - not to my eyes.

    I think we've put the machine through maybe 400 hours since then running at 2/3 fullspeed eg 12 000 rpm.
    (The router gives me a message every 40 hours of runtime, that a 'service' is needed.
    I think I've reset the message about 10 times since then.)

    It's a retrofitted Esab, masquerading under Tekcel software...

  5. #49
    Join Date
    Aug 2010
    Location
    Bendigo
    Age
    72
    Posts
    1,986

    Default

    I think there was a couple of words in Bob Wilson post about bearing lifespan that was overlooked by a few readers: "at DESIGN LOAD"
    No engineer in their right mind would contemplate selecting bearings without a large load margin. If you look at the design load capacity of bearings, they are quite high, especially for little bearings. The life span goes up enormously when the bearings run well below design loads.
    Cheers,
    Joe
    9"thicknesser/planer, 12" bench saw, 2Hp Dusty, 5/8" Drill press, 10" Makita drop saw, 2Hp Makita outer, the usual power tools and carpentry hand tools...

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