Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-02-10, 05:11 PM   #1
DVC45
Senior Member
Thread Starter
 
DVC45's Avatar
 
Join Date: Dec 2006
Bikes:
Posts: 3,834
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
80's "sealed bearing" hubs

How sealed are they?
I got an 87 vintage road bike that has a "sealed bearing" marked on the hubs. I'm just wondering if its okay to use the bike or repack the bearings first?
' seems to spin freely with no drag.

Thanks in advance!
DVC45 is offline   Reply With Quote
Old 10-02-10, 05:21 PM   #2
Jeff Wills
Insane Bicycle Mechanic
 
Jeff Wills's Avatar
 
Join Date: Mar 2008
Location: other Vancouver
Bikes:
Posts: 7,944
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 16 Post(s)
Quote:
Originally Posted by DVC45 View Post
How sealed are they?
I got an 87 vintage road bike that has a "sealed bearing" marked on the hubs. I'm just wondering if its okay to use the bike or repack the bearings first?
' seems to spin freely with no drag.

Thanks in advance!
Most of what I've encountered have been conventional cup-and-cone ball bearing hubs with seals on the dustcaps. At a minimum, I'd probably pull a cone off to look at it and put a dollop of fresh grease in it. If the grease was old, I'd take it all apart and clean everything before putting in new bearings and grease. It'd be good for another 20 years.
__________________
Jeff Wills

Comcast nuked my web page. It will return soon..
Jeff Wills is offline   Reply With Quote
Old 10-02-10, 05:37 PM   #3
nwbikeman
Senior Member
 
Join Date: Aug 2010
Location: Washington
Bikes: Serotta Davis Phinney, 1992 Serotta T Max,1984 Specialized Allez, Olmo, 1974 Strawberry,Redline bmx, ect.,
Posts: 472
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Sealed Bearings

Hi, most wheels marked sealed bearing were the cartridge style sealed bearings pressed into the hubs. As apposed to hubs marked sealed mechanism usually were loose ball bearings with some type of o ring seal on the axle cone or on the hubs dust shield. To know for sure and if both wheels are the same hub then take the front apart to inspect and confirmed sealed or not. If not then I would re grease and put in new bearings using a waterproof or lithium grease just to start fresh. Not auto wheel bearing grease. Good luck.
nwbikeman is offline   Reply With Quote
Old 10-02-10, 05:48 PM   #4
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,847
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
If the hub really has cup-and-cone bearings and it hasn't been serviced since new, I definitely would overhaul, clean and add new grease to it.

I once got a '86 vintage bike from my brother that hadn't been ridden in about 15 years and the grease (hubs, headset and bottom bracket) had dried out to the consistancy of dry rubber cement. The hubs felt ok when turned by hand but would have been ruined by riding them in that condition.

Even cartridge bearings can be relubed, particularly if they are open bearings but even if they are sealed, the seals can be pried up and fresh grease added.
HillRider is offline   Reply With Quote
Old 10-02-10, 06:40 PM   #5
fietsbob 
coprolite
 
fietsbob's Avatar
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 7
Posts: 19,642
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 437 Post(s)
... the ones in my specialized Expedition were shielded and have seals on the cartridge, they're still fine 20 years later.

... Phil Wood uses submersible pump bearings ..

... neoprene seals can be removed to service cartridge sealed bearings .
fietsbob is offline   Reply With Quote
Old 10-02-10, 07:10 PM   #6
Jeff Wills
Insane Bicycle Mechanic
 
Jeff Wills's Avatar
 
Join Date: Mar 2008
Location: other Vancouver
Bikes:
Posts: 7,944
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 16 Post(s)
Quote:
Originally Posted by nwbikeman View Post
Hi, most wheels marked sealed bearing were the cartridge style sealed bearings pressed into the hubs. As apposed to hubs marked sealed mechanism usually were loose ball bearings with some type of o ring seal on the axle cone or on the hubs dust shield. To know for sure and if both wheels are the same hub then take the front apart to inspect and confirmed sealed or not. If not then I would re grease and put in new bearings using a waterproof or lithium grease just to start fresh. Not auto wheel bearing grease. Good luck.

I worked on plenty that were marked "Sealed Bearing" and were cup-and-cone bearings. The only way to really tell is to take the hub apart.
__________________
Jeff Wills

Comcast nuked my web page. It will return soon..
Jeff Wills is offline   Reply With Quote
Old 10-02-10, 08:00 PM   #7
HillRider 
Senior Member
 
Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Posts: 28,847
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 66 Post(s)
Quote:
Originally Posted by fietsbob View Post
... the ones in my specialized Expedition were shielded and have seals on the cartridge, they're still fine 20 years later.
Perhaps they are but not all OEM grease is that durable. I ran into some that certainly wasn't.


Quote:
Originally Posted by fietsbob View Post
... neoprene seals can be removed to service cartridge sealed bearings .
Yeah, that's what I said too.
HillRider is offline   Reply With Quote
Old 10-03-10, 09:41 AM   #8
DVC45
Senior Member
Thread Starter
 
DVC45's Avatar
 
Join Date: Dec 2006
Bikes:
Posts: 3,834
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Okay, I removed the cones. It looks okay, but since I already got it out, I might as well repack the bearings.

Thanks folks!
DVC45 is offline   Reply With Quote
Old 10-03-10, 07:38 PM   #9
bellweatherman
Senior Member
 
bellweatherman's Avatar
 
Join Date: Aug 2005
Location: Austin
Bikes: Too many to count
Posts: 2,103
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
If your old 80s hubs are in good condition, an overhaul and good repacking of grease will have them spinning like butter! Even better than the newer cartridge style hubs.
bellweatherman is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 08:04 PM.