Cycling Equipment · Public discussion

Help disassembling Schimano freewheel/hub

Started by The Eye · · Last activity · 3 posts · 707 views

Thread details

What we know about this thread

Original section
Cycling Equipment
Published
2 October 2004
Last activity
3 October 2004
Original author
The Eye
Posts
3
Discussion status
Public discussion
Total views
707
Views / 30 days
0

The navigation and discussion metadata provide context. Posts remain in their original chronological order.

Showing posts 1–3 of 3
Posts remain in their original chronological order.

Text size
  1. Below find a link to detailed picture of the freewheel

    Advice on how to disassemble it? What tools will I need?

    The reason I want to disassemble it is to clean and repack the bearings?

    Thanks for any advice/help.

    http://www.technoscribe.net/schimano.html


  2. Quoted message said:


    Advice on how to disassemble it? What tools will I need?

    The reason I want to disassemble it is to clean and repack the bearings?

    Sheldon has an article about how to do it, but for good reason recommends
    against it.

    http://sheldonbrown.com/freewheels.html

    Freewheel bearings are tiny, 1/8", and there are lots of them. They are
    easy to loose and very difficult to reassemble. And they only turn when they
    are not under load, so they are unlikely to need replacement.

    You can inject oil into the freewheel, flushing out the old with enough of
    it. I'm unsure of the best way to do this, but it can certainly be done. If
    you do this the bearings should outlive the sprockets.

  3. The Eye said:

    Below find a link to detailed picture of the freewheel

    Advice on how to disassemble it? What tools will I need?

    The reason I want to disassemble it is to clean and repack the bearings?

    Thanks for any advice/help.

    http://www.technoscribe.net/schimano.html


    When I used freewheels I would occasionally remove them from the wheel
    and trickle a light oil between the moving part and the static part at
    the back. You can, of course, do this from the front while the
    freewheel is installed, but it makes a mess of the spokes and may run
    into the RH wheel bearing. Freewheel bearings are so lightly loaded
    (and usually so badly adjusted anyway) that the lubricant is there
    largely to prevent rust. Grease is actually a bad idea [1] as it may
    gum up the pawls when it gets dirty, whereas oil can be flushed through,
    taking the dirt with it.

    Disassembly is fairly simple - reassembly is not. I've done it as an
    intellectual exercise, and it went fine, but I don't think I'd bother again.

    [1] although a dab of grease is usually needed to hold the balls in
    place during reassembly, should you ignore the above advice ;-)

Active in the last 60 minutes

Active in this thread

0 users · 0 guests ·0 bots ·0 total

No signed-in users are active right now.

No known search crawlers active right now.