I have a Denon cassette deck and it has lost its hub retainers. These appear
to be tiny little plastic circles with a hole in the middle that push over a
spindle and slip into a narrow part on the spindle to stop the hubs coming
too far out when you eject the tapes. I have tried tiny O rings, but these
are too thick and put too much friction on the hub/spindle interface, IE the
spindles are fixed, only the hubs rotate.
Brian

--
From the Sofa of Brian Gaff Reply address is active

Brian Gaff was thinking very hard :
I have a Denon cassette deck and it has lost its hub retainers. These appear
to be tiny little plastic circles with a hole in the middle that push over a
spindle and slip into a narrow part on the spindle to stop the hubs coming
too far out when you eject the tapes. I have tried tiny O rings, but these
are too thick and put too much friction on the hub/spindle interface, IE the
spindles are fixed, only the hubs rotate.
Brian

Circlips?

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk

On Sat, 24 Nov 2012 14:27:24 GMT, Harry Bloomfield
wrote:

Brian Gaff was thinking very hard :
I have a Denon cassette deck and it has lost its hub retainers. These appear
to be tiny little plastic circles with a hole in the middle that push over a
spindle and slip into a narrow part on the spindle to stop the hubs coming
too far out when you eject the tapes. I have tried tiny O rings, but these
are too thick and put too much friction on the hub/spindle interface, IE the
spindles are fixed, only the hubs rotate.
Brian

Circlips?
At some point in my dim & distant, I seem to recollect using copper
wire for this purpose. One turn and twist, but bend the twist up to
reduce friction.

As for the size of the wire, I can't help. The wire would have come
from an old transformer or choke. Copper wire can be reduced in
diameter by stretching BTW

Personally I would scrap the Denon, if the retainers have worn out as
opposed to being butchered during belt replacement, then the drive
motor has been on borrowed time for years.

Cassette decks do not "lose" hub retainers incidentally, Einstein some
time back postulated that your hub retainers are still with us in some
form. Have you looked really hard for them?

HN

No, these are much thinner and have no gap.
Brian

"Harry Bloomfield" wrote in message
. uk...
Brian Gaff was thinking very hard :
I have a Denon cassette deck and it has lost its hub retainers. These
appear to be tiny little plastic circles with a hole in the middle that
push over a spindle and slip into a narrow part on the spindle to stop
the hubs coming too far out when you eject the tapes. I have tried tiny
O rings, but these are too thick and put too much friction on the
hub/spindle interface, IE the spindles are fixed, only the hubs rotate.
Brian

Circlips?

--
Regards,
Harry (M1BYT) (L)
http://www.ukradioamateur.co.uk



--
From the laptop of

I'm sure they are around, but no the machine is not worn out. They bit the
dust due to a faulty tape getting jammed. The machine, a dual capstan
three motor jobbie is fine but every time I eject the left spool tends to
come with the tape and has to be pushed back on.
Unfortunately, anything not completely seamless will not do due to a
small nick is each center of hub where the moving bit locates on it. Any
projection like a wire or circle will inevitably ping and cause wow.

Brian

"Archibald" wrote in message
...
On Sat, 24 Nov 2012 14:27:24 GMT, Harry Bloomfield
wrote:

Brian Gaff was thinking very hard :
I have a Denon cassette deck and it has lost its hub retainers. These
appear
to be tiny little plastic circles with a hole in the middle that push
over a
spindle and slip into a narrow part on the spindle to stop the hubs
coming
too far out when you eject the tapes. I have tried tiny O rings, but
these
are too thick and put too much friction on the hub/spindle interface, IE
the
spindles are fixed, only the hubs rotate.
Brian

Circlips?
At some point in my dim & distant, I seem to recollect using copper
wire for this purpose. One turn and twist, but bend the twist up to
reduce friction.

As for the size of the wire, I can't help. The wire would have come
from an old transformer or choke. Copper wire can be reduced in
diameter by stretching BTW

Personally I would scrap the Denon, if the retainers have worn out as
opposed to being butchered during belt replacement, then the drive
motor has been on borrowed time for years.

Cassette decks do not "lose" hub retainers incidentally, Einstein some
time back postulated that your hub retainers are still with us in some
form. Have you looked really hard for them?

HN


--
From the laptop of

Brian has severe sight problems.

On Sat, 24 Nov 2012 17:03:17 +0000, Archibald
wrote:

Cassette decks do not "lose" hub retainers incidentally, Einstein some
time back postulated that your hub retainers are still with us in some
form. Have you looked really hard for them?
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On Sat, 24 Nov 2012 18:19:33 -0000, "Brian Gaff"
wrote:

No, these are much thinner and have no gap.


A single twist of a spring, clipped from one in a box of many springs saved in
case they came in useful?


Thomas Prufer

Archibald wrote:

Cassette decks do not "lose" hub retainers incidentally, Einstein some
time back postulated that your hub retainers are still with us in some
form. Have you looked really hard for them?

Got any beady-eyed friends?

Bill

The problem is that they are like most small objects, by the time you notice
they are gone, they are really gone. Besides, if they were still any good
they would not have fallen off in the first place.
Its so often the case that a nice bit of design is ruined by one little
poorly chosen part.
Brian

--
From the Sofa of Brian Gaff Reply address is active
"Bill Wright" wrote in message
...
Archibald wrote:

Cassette decks do not "lose" hub retainers incidentally, Einstein some
time back postulated that your hub retainers are still with us in some
form. Have you looked really hard for them?

Got any beady-eyed friends?

Bill

Hmm, well, its that little raw edge that is often the problem but worth a
thought I suppose. I see no reason why they did not designee it with a
bigger spindle and a washer in front of a normal circlip. Just a bit of bad
design in an otherwise nice one.
Brian

--
From the Sofa of Brian Gaff Reply address is active
"Thomas Prufer" wrote in message
...
On Sat, 24 Nov 2012 18:19:33 -0000, "Brian Gaff"

wrote:

No, these are much thinner and have no gap.


A single twist of a spring, clipped from one in a box of many springs
saved in
case they came in useful?


Thomas Prufer

On Sat, 24 Nov 2012 14:15:33 +0000, Brian Gaff wrote:

I have a Denon cassette deck and it has lost its hub retainers. These
appear to be tiny little plastic circles with a hole in the middle that
push over a spindle and slip into a narrow part on the spindle to stop
the hubs coming too far out when you eject the tapes. I have tried tiny
O rings, but these are too thick and put too much friction on the
hub/spindle interface, IE the spindles are fixed, only the hubs rotate.

I expect that the design might be common to many cassette players - so it
might be worth finding a few junk units (freecycle etc.) of lesser
quality to see if they'll provide the parts.

Are you sure that the retainers aren't assembled from the back? i.e. take
spindle, thread on retainer, then hub, then attach to chassis, then fit
drive gear or pulley on the reverse side?

cheers

Jules

Brian, at the risk of stating the obvious, have you tried asking Denon?

Bert

On 26/11/2012 10:12, Bert Coules wrote:
Brian, at the risk of stating the obvious, have you tried asking Denon?

Bert

Thinking out the box how about cutting a small piece of plastic in the
diameter of the thing and just pressing it on allowing the spindle to
punch the hole.