Beogram 4002 bearing

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  • #5537
    calman65
    BRONZE Member
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    Hello all, what are my options for replacing the spindle bearing on 4002 type 5513 . The platter seems to have to much side to side movement . The tt does play and I have recapped it .Thanks , James

    #5560
    chartz
    BRONZE Member
    • Burgundy
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    Hi James, and welcome 😃

    This is absolutely normal for that bearing. It is a self-centering bearing with only one sintered ring at the top. It has a special thrust pad at the bottom.

    • This reply was modified 1 month ago by chartz.
    #5562
    calman65
    BRONZE Member
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    Ok thanks ,   I don’t see the thrust pad . The spindle is convex and inside the main bearing is concave , there should also be a thrust pad ?

    #5572
    chartz
    BRONZE Member
    • Burgundy
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    There is always one.

    #5573
    calman65
    BRONZE Member
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    Do you know what the pad looks like, got a picture? The way the spindle fits into the bottom of the bearing on my 4002 seems to center it.

    • This reply was modified 1 month ago by matador.
    #5587
    calman65
    BRONZE Member
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    I was wrong about the inside of the main bearing. I got a better look, and it is flat with a small deep hole in the center. This small hole might center the spindle. I have not found any mention of the thrust pad yet. The spindle needs something to center it, or it will rub on the single sintered ring. Maybe the little hole?

    #5604
    Mark-sf
    Beoworld Member
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    I believe the confusion is due to the 4002 having two different bearings. The earlier 5503 types had the platter from the 4000 which had a ball and thrust pad. Yours is the later one which had a lighter but larger black subplatter  and only used a centered point. In any case, there does not appear to be anything missing.

    #5605
    calman65
    BRONZE Member
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    Thanks Mark that explains it. I am working my way through Beolovers restored thread. I have yet to hear back from him on this.

    #5607
    spassmaker
    BRONZE Member
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    Hi

    Regarding to the confusion about the bearing maybe this gives a bit more light:

    https://beolover.blogspot.com/2016/12/beogram-8002-mechanical-adjustments-and-scraping-platter.html

    Kind regards

    Christian

    #5610
    Mark-sf
    Beoworld Member
    • Topics Started 0
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    Christian, I’m afraid the 8002 had a different bearing yet again as it was a different drive system.

    #5614
    chartz
    BRONZE Member
    • Burgundy
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    There is a special thrust pad with a hole and the spindle sits slightly over it. Late Beogram 4000´s had the same kind of bearing, only larger (12 mm if memory serves).

    #5615
    matador
    Moderator
    • Paris France
    • Topics Started 17
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    I’ve got two 4002 (not 4000’s) and I can’t see what the thrust pads are.

    I want to add that one of the BG has a little play in the platter that do not impact playing records.

    Can somebody say something relevant about these thrust pads that will not add more haze to the question?

    #5621
    calman65
    BRONZE Member
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    matador read post#5604., My5513 type 4002 does not use the thrust pad and the “play” in the platter is normal. Its a self centering spindle.  During my pre-restore inspection I notice that the zero force balancing screw is loose , just as beolover said it would be .

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