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VCR capstan lube

Discussion in 'Electronic Repair' started by RonKZ650, May 18, 2004.

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  1. RonKZ650

    RonKZ650 Guest

    Over the years I've tried various oils etc to lube noisy/dry capstan bearings
    with little luck. I get tired of replacing perfectly good albeit dry bearings.
    I see Lubriplate is good to 350 degrees. Anybody try it or find something that
    lasts and doesn't gum up in a couple weeks?
    I have a perfectly good SLV696HF Sony here with the notorious capstan bearing
    problem, caught before the bearing and motor ruined, but it definately is dry.
  2. Patch

    Patch Guest

    Lube won't help with the Sony capstan bearing. MCM sells a replacement
    bearing kit for about $7. Part # X-2625-356-2. The only problem, I think
    they have a $25 min order. Maybe you can try I'm
    sure they don't have a min order.
  3. I have a perfectly good SLV696HF Sony here with the notorious capstan bearing
    The Sony capstan problem is not because the bearings go dry. It's because the
    metal casing that contains the bearings is known to warp, which tilts the
    capstan rotor and causes it to rub against the stators on the capstan motor
    circuit, which is the source of the scraping noise.

    The only solution is to replace the capstan bearing assembly on the capstan
    motor module.

    This is not a lube problem. - Reinhart
  4. RonKZ650

    RonKZ650 Guest

    Thanks for the replys. I guess I should clarify I'm not speaking entirely about
    the Sony, I've got the bearing for it. There's been multiple instances of
    binding motors causing either capstan overheating or that horrible vibration on
    rewind on various other VCRs. Every case in disassembly the same thing is
    found, the lower bearing all gummed up. Clean the gum off, reassemble
    dry=problem back in a few days. Reassemble using various oils/grease=problem
    returns in a few days. Replace bearing=problem fixed. Problem is not all
    capstan bearing are available. Seems a shame to throw away a VCR when I'm sure
    there is some kind of lube that would work on these bearings.
  5. Patch

    Patch Guest

    Lube won't fix the problem when you have worn out sleeve bearings made of
    brass. There are some suppliers that sell replacement brass bearings. In a
    pinch, pop the bearings out of a good, used capstan motor & use those.
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