Detailed drawings of Nexus 7sp. hub internals?

[Konstantin Shem]

Is there a place where I can look at detailed pictures of
the internal gear hubs? In particular, Shimano Nexus 7sp,
but any other is of interest as well. Pdfs on shimano.com do
not reveal the core, the planetary mechanism, just showing
it as a block. (Probably they mean that it is not user-
serviceable.)

I know how the planetary transmission works in general,
but want to see how it is implemented in a real product,
especially how the cable pulls either one or the other
satellite ring (are there two of them?). The reason for
such interest is that my Nexus hub shifts somewhat
sloppy, with nasty clicking sometimes, and I want to know
possible reasons.

TIA,

Konstantin.

 

[Jake Lewis]

Konstantin Shemyak <[email protected]> wrote in message news:<[email protected]>...
> Is there a place where I can look at detailed pictures of
> the internal gear hubs? In particular, Shimano Nexus 7sp,
> but any other is of interest as well. Pdfs on shimano.com
> do not reveal the core, the planetary mechanism, just
> showing it as a block. (Probably they mean that it is not
> user-serviceable.)
>
> I know how the planetary transmission works in general,
> but want to see how it is implemented in a real product,
> especially how the cable pulls either one or the other
> satellite ring (are there two of them?). The reason for
> such interest is that my Nexus hub shifts somewhat sloppy,
> with nasty clicking sometimes, and I want to know possible
> reasons.
>
> TIA,
>
> Konstantin.

tread with fear my friend - Ive been in there and its messy.
google my other posts in bike groups for details.

First thing to check is that the red dots line up in the
tiny plastic window when in 4th gear. The window is between
the sprocket and gear cable on the topside of the hub.

Mail me (omit the NOJUNKSPAM) if you need more details.

 

[Jake Lewis]

Konstantin Shemyak <[email protected]> wrote in message news:<[email protected]>...
> Is there a place where I can look at detailed pictures of
> the internal gear hubs? In particular, Shimano Nexus 7sp,
> but any other is of interest as well. Pdfs on shimano.com
> do not reveal the core, the planetary mechanism, just
> showing it as a block. (Probably they mean that it is not
> user-serviceable.)
>
> I know how the planetary transmission works in general,
> but want to see how it is implemented in a real product,
> especially how the cable pulls either one or the other
> satellite ring (are there two of them?). The reason for
> such interest is that my Nexus hub shifts somewhat sloppy,
> with nasty clicking sometimes, and I want to know possible
> reasons.
>
> TIA,
>
> Konstantin.

tread with fear my friend - Ive been in there and its messy.
google my other posts in bike groups for details.

First thing to check is that the red dots line up in the
tiny plastic window when in 4th gear. The window is between
the sprocket and gear cable on the topside of the hub.

Mail me (omit the NOJUNKSPAM) if you need more details.