Cycling Equipment · Public discussion

RE:Use of Threadlockers on BB

Started by Bob Flumere · · Last activity · 3 posts · 295 views

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Cycling Equipment
Published
20 March 2007
Last activity
20 March 2007
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Bob Flumere
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  1. From Threadlocker.com

    <<<"Threadlockers are designed to lock and seal threaded fasteners.
    They perform better than traditional mechanical devices such as lock
    washers because they unitize the entire assembly. This prevents any
    loosening from shock and vibration.

    Threadlockers also alleviate rust-lock and prevents any leakage. There
    are a variety of products which are designed for various strengths,
    temperature, and remove ability. Liquid threadlockers are considered
    to be the MOST effective method of locking and sealing threaded
    fasteners">>>

    From me: (FWIW)

    Use grease if you like to on BB threads, but don't discount the fact
    that most liquid threadlocking compounds lubricate (during assembly),
    seal and secure the parts involved, which is why they are so widely
    used in machine and aerospace applications.

    (Many machine and engine parts come with thread locking compounds
    prepped on the threads.)

    BTW, they won't harm your bike in any way <G> and if you choose the
    correct product, it can be disassembled with hand tools and no heat.

    Electrolysis is prevented (no seizing of dis-similar metal parts)
    (Works better for this than anti-seize compounds in many hostile
    environments such as in salt water marine applications and dis-similar
    materials.)

    Sealing is assured (no water can enter the threads)

    The parts won't unscrew because of loostening due to shock
    loading and vibration. (This would be the part that the grease doesn't
    seem to be able to do very well.)

    No "walking" and/or "galling" which usually ends up in seizure.

    I'm not sure what the down side could be???

    BTW I am only a "Wrench" and am not affiliated with any company
    that makes these products. <BG>

    I use em' all the time on many different applications, especially
    where they are specified by the manufacturer and yes, also on my
    bikes.

    Nothing to be afraid of ! <G>

    Bob..

  2. right. the post in question suggested, possibly to make joke, the cup
    was held in the BB by three threads. A three thread installation may
    require a red locktite. Three threads of red lock doesn't develop
    enough prevail torque to require heating the unit till it smokes to
    powder the locktite and remove the cup. but off course proceed at your
    own.
    with BB there are threads inside left unthreaded-maybe three!!-best
    coated with some blue lock before screwing the cup or whatever into
    the BB but if you forget grease vapor maybe will flow over it before
    the threads and steel frame rots thru. oh well
    lock itself doesn't make the grade for waterproof in a wet climate.
    wiping a film of linseed over the seams solves that problem if not
    those last three threads rusting out.

  3. Bob Flumere said:

    From Threadlocker.com

    <<<"Threadlockers are designed to lock and seal threaded fasteners.
    They perform better than traditional mechanical devices such as lock
    washers because they unitize the entire assembly. This prevents any
    loosening from shock and vibration.

    Threadlockers also alleviate rust-lock and prevents any leakage. There
    are a variety of products which are designed for various strengths,
    temperature, and remove ability. Liquid threadlockers are considered
    to be the MOST effective method of locking and sealing threaded
    fasteners">>>

    From me: (FWIW)

    Use grease if you like to on BB threads, but don't discount the fact
    that most liquid threadlocking compounds lubricate (during assembly),
    seal and secure the parts involved, which is why they are so widely
    used in machine and aerospace applications.

    (Many machine and engine parts come with thread locking compounds
    prepped on the threads.)

    BTW, they won't harm your bike in any way <G> and if you choose the
    correct product, it can be disassembled with hand tools and no heat.

    Electrolysis is prevented (no seizing of dis-similar metal parts)
    (Works better for this than anti-seize compounds in many hostile
    environments such as in salt water marine applications and dis-similar
    materials.)

    Sealing is assured (no water can enter the threads)

    The parts won't unscrew because of loostening due to shock
    loading and vibration. (This would be the part that the grease doesn't
    seem to be able to do very well.)

    No "walking" and/or "galling" which usually ends up in seizure.

    I'm not sure what the down side could be???

    the only "down side" is a little harmless ribbing from the locals who
    have of course all done their homework and have extensive experience
    with its use.

    Quoted message said:


    BTW I am only a "Wrench" and am not affiliated with any company
    that makes these products. <BG>

    I use em' all the time on many different applications, especially
    where they are specified by the manufacturer and yes, also on my
    bikes.

    Nothing to be afraid of ! <G>

    if you use the right grade, of course not. but such heretical thinking
    isn't blind obedience to the immutable "truths" of r.b.t. and for that,
    ye shall be condemned unto the damnation of the r.b.t groundhog day. ye
    shall repeat the truth endlessly, and endlessly the self-deceiving scorn
    of the ingnorati shall rain down on your unworthy organs.

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