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Rear Hub
- Thread starter borgward
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juvela
Riding a '38 Autocycle Deluxe
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these SA rear hubs to take a multi-speed gear block have a fixed drive side cone
the non-drive side cone is a normal arrangement with cone/washer/locknut
unsure if this the sort of information you seek...
you mention an ATOM marking - if this on hub it is a one-piece small flange alloy hub
produced in the Maillard facility in Incheville France
factory closed in 1991 so repair parts such as replacement cones are a challenge
some hobbyists resort to cannibalisation
S.I.C.C. marking would be for a Regina multi-speed gear block from Italy
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VIVA La Isabella!
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these SA rear hubs to take a multi-speed gear block have a fixed drive side cone
the non-drive side cone is a normal arrangement with cone/washer/locknut
unsure if this the sort of information you seek...
you mention an ATOM marking - if this on hub it is a one-piece small flange alloy hub
produced in the Maillard facility in Incheville France
factory closed in 1991 so repair parts such as replacement cones are a challenge
some hobbyists resort to cannibalisation
S.I.C.C. marking would be for a Regina multi-speed gear block from Italy
---
VIVA La Isabella!
-----
Last edited:
juvela
Riding a '38 Autocycle Deluxe
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Atom rear hub takes nine quarter inch balls per side
it will be necessary to remove gear block in order to repack hub
roughness you mention could be due to a bent axle
gear block removal is one of two types: notched or splined
you will need the appropriate removal tool
to work on axle set metric cone wrenches will be required, iirc size is fifteen mm
the Italian manufactured gear block is likely to be a replacement; the original would have been either Atom from France or the TDC brand from Britain (Thomas D. Cross & Sons Ltd of Birmingham)
change was fairly common when new in order to achieve a greater gear range
gear block thread should be BSC "English"
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Atom rear hub takes nine quarter inch balls per side
it will be necessary to remove gear block in order to repack hub
roughness you mention could be due to a bent axle
gear block removal is one of two types: notched or splined
you will need the appropriate removal tool
to work on axle set metric cone wrenches will be required, iirc size is fifteen mm
the Italian manufactured gear block is likely to be a replacement; the original would have been either Atom from France or the TDC brand from Britain (Thomas D. Cross & Sons Ltd of Birmingham)
change was fairly common when new in order to achieve a greater gear range
gear block thread should be BSC "English"
-----
Last edited:
Schwinny
I live for the CABE
You'll need to take it all apart first. Rough or notchiness doesn't always mean damage. It's an old bike, and if the hubs never been serviced, it may do with simply a thorough cleaning, new balls and repack.
If things are messed up beyond a repack, I'd just replace the whole hub. But that's another can of worms.
- remove freewheel
- place wheel over a catch basin or on towel. I use a large plastic mixing bowl I got at a thrift.
- undo non-driveside locknut, spacer cone-nut.
- pull axle out drive side
- a magnet works good to pull out all ball bearings, 9 per side.
- clean everything well (id clean and lube the freewheel also)
- inspect the bearing surfaces
- balls are cheap, I'd just replace them.
If things are messed up beyond a repack, I'd just replace the whole hub. But that's another can of worms.
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