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#1 2016-03-02 21:06:30

MacOS Plus
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Registered: 2015-12-09
Posts: 89

CD/DVD drive spindle traction material - advice on replacement?

I've noticed on some of my older CD and DVD drives that the surface coating of the spindle that grips the center of the disc is breaking down and becoming very sticky.  At the very least this leaves gooey residue on the disc, at worst it prevents the eject mechanism from working.  On some drives this was a thin ring of rubber, on others some sort of sprayed-on coating.  Given how easy it would be to throw-off the balance of the spindle, especially concerning over 4x speed, any replacement would be quite important to get right.  It also has to be very thin because the tolerances are quite small.  Any suggestions?

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#2 2016-03-02 22:35:52

bbraun
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Registered: 2014-05-29
Posts: 1,064
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Re: CD/DVD drive spindle traction material - advice on replacement?

I haven't noticed that.  What would be the symptom?  Noisy wobbly sounding drive?  The only problems I've noticed with CD drives is that they too need recapping these days.

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#3 2016-03-03 00:03:23

MacOS Plus
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Registered: 2015-12-09
Posts: 89

Re: CD/DVD drive spindle traction material - advice on replacement?

The main problem on a couple drives was failing to eject because the disc was stuck so hard to the spindle that the eject drive belt would simply slip on the pulley.  It works fine when reading, if not better perhaps.  It's just the eject problem and the sticky residue left on the disc.  That residue will easily spread to the data area of the surface if you don't notice before sliding it into a sleeve.  I don't want to have to clean that off the risky part of the surface, nor do I want to have to worry about a sticky disc going in another drive and contaminating the traction pad it that one also.

  Normally I'd just scrap a drive with any problems, but now it's showing up in my Apple-ROM SCSI CD drives.  I'd rather not trash them if everything else is still functional, particularly my two precious 24x drives.

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#4 2016-03-03 17:18:19

cc333
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From: North S.F. Bay Area, CA
Registered: 2014-05-23
Posts: 562

Re: CD/DVD drive spindle traction material - advice on replacement?

The (actually quite new, relatively speaking) drive on my DP G5 did this, and the disk was stuck so hard, that it actually got cracked when I finally was able to pry it off the spindle.

The same drive, without this pad, seems to work OK now, so I'm not too concerned about it. I'm more concerned with this happening again with other drives as they age.

Actually, just remembered that I also had the same thing happen to one of my LaserDisc players, where one of the pads on the tray got sticky and actually "melted" into the disk surface!

c


Main Macs: Early '09 Mac Pro, Mid '12 MacBook Pro 13"
Secondary Macs: Early '08 Mac Pro, Mid '12 MacBook Pro 15"
Playthings: Mac SE/30, 3.0 GHz Mavericks-based HackServe, Many others....
Desired: Lisa, Kanga PowerBook G3, Apple IIc, Apple II, Spare parts, etc.

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#5 2016-03-04 04:48:25

MacOS Plus
Member
Registered: 2015-12-09
Posts: 89

Re: CD/DVD drive spindle traction material - advice on replacement?

cc333 wrote:

The (actually quite new, relatively speaking) drive on my DP G5 did this, and the disk was stuck so hard, that it actually got cracked when I finally was able to pry it off the spindle.

The same drive, without this pad, seems to work OK now, so I'm not too concerned about it. I'm more concerned with this happening again with other drives as they age.

  Wow, that's severe!  My main concern about running without any pad is that the disc may not slow down properly when the electronic braking of the spindle kicks in.  The drive could assume the disc has stopped only because the spindle has.  I actually had one drive where the logic went mad and it tried to start an eject cycle while the disc was still spinning at 48x speed.  The result was completely catastrophic as the disc clattered around all over the inside of the drive until it finally expended all its energy!

Actually, just remembered that I also had the same thing happen to one of my LaserDisc players, where one of the pads on the tray got sticky and actually "melted" into the disk surface!

c

  That's horrible!  Now I'm scared about my own LaserDisc players.  I already had to repair a broken gear in one - I certainly don't want my discs getting mangled hubs.  I have a couple of LD players.  One is a basic consumer model, the other is one of those 'industrial'-type units that was sometimes used in LaserDisc-based arcade machines.

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#6 2016-03-04 15:27:02

macuserman
Member
Registered: 2016-02-11
Posts: 11

Re: CD/DVD drive spindle traction material - advice on replacement?

I wonder if you could just buy something like this and swap the spindle or the rubber ring? Looks like you could peel it up and transfer it. http://www.amazon.com/RF-300FA-12350-5- … B00880CKEI

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