Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

New: Take part in the November Giveaway for a Single Speed Cruiser bike from Custom Villy


What bearing Quality used for MFG in past years?
#1
Question: Say you have a bike that was built in every 10 year increment since 1920 or so...
1920, 1930, 1940, 1950, etc...

What grade of Bearing 100, 50 25, etc would have been used for Mfg, and I realize this might be MFG specific too... ??

What I'm trying to determine (And this could be another of those 'unknown' things about 1970--1980 French bikes...)

If you rebuild an old bike, based upon year, what grade of bearing do you think you're replacing?

I would assume there would be a diminishing returns issue....

Just nosy...
  Reply
#2
In addition to being one of those 'unknown' things it's one of those unimportant things. It matters not AT ALL what grade you are replacing. For replacement of any bearing grade 25 is more than sufficient, 100 is perfectly acceptable and grade 10 is expensive overkill.
  Reply
#3
I suspected that, but wanted confirmation...
  Reply
#4
The big jumps in bearing improvement came during WWI and WWII. For bicycle applications, WWII to present is the same.

The answer to your original question is beyond the scope of this forum, and requires considerable research.
Nigel
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
6,792
05-04-2011, 02:05 AM
Last Post: Bill

Forum Jump:

[-]
10 Latest Posts
Newbie
Today 06:03 AM
Looking for drop handlebars
Today 05:55 AM
Bike is Creaking on the left side during...
Today 01:30 AM
Finding out how old my shears bike is
Yesterday 07:01 PM
New Zealand flag design with a cyclist
Yesterday 06:51 PM
Gears slipping
Yesterday 02:10 AM
Bike recommendation
11-30-2020 04:18 AM
Gravity Bike Crank
11-29-2020 07:08 PM
Biking in the rain
11-29-2020 04:57 PM
UCI Cyclo-cross World Cup
11-29-2020 04:33 PM

[-]
Top 5 Posters This Month
no avatar 1. Jesper
48 posts
no avatar 2. Painkiller
20 posts
no avatar 3. Nikko
11 posts
no avatar 4. G_M
10 posts
no avatar 5. Sagan97
8 posts