Retrobike Forum Index

It is currently Sat Dec 03, 2016 5:02 pm

* Login   * Register * Search  * FAQ



Post new topic Reply to topic  [ 6 posts ] 
Author Message
 Post subject: straightening axles
PostPosted: Tue Jun 05, 2012 6:25 pm 
Old School Hero
User avatar

Joined: Tue Jan 15, 2008 8:17 pm
Posts: 199
Location: Chesterfield
I recently got two rear wheels both 1950's, one is a small flange BH Airlite with a solid axle and the other a Powell large flange again with a solid? axle but with a Tecalmit grease nipple fitted to one end of the axle..........both the axles are a little bit bent/out of true...is it possible to safely straighten these?


Top
 Profile  
 
 Post subject:
PostPosted: Tue Jun 05, 2012 8:16 pm 
rBoTM Winner
rBoTM Winner
User avatar

Joined: Sat Apr 14, 2012 12:03 am
Posts: 395
Location: Newcastle upon Tyne
I've never had success with straightening axles. Even if you can use a method to try and persuade them straight, you will always have a degree of bend on them. The axles will also be weaker due to the bend (typically , if the bend is very noticeable, then they are almost at snapping point anyway).

Also bear in mind that a bent axle causes uneven cup and cone wear, so even if the axle straightens, you will have uneven wear on the cones (which may be replaceable) but you will also have uneven wear on the cups (which may not be replaceable).

Its always safer to get a compatible threaded axle.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 06, 2012 3:08 am 
Devout Dirtbag

Joined: Tue Apr 12, 2011 11:56 am
Posts: 118
Location: Auckland, New Zealand
two V blocks and an hydraulic press... A DTI helps too.


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 06, 2012 7:35 am 
Old School Hero
User avatar

Joined: Tue Jan 15, 2008 8:17 pm
Posts: 199
Location: Chesterfield
Hmm I wondered if that would work it was in their way back from my apprentice days...sadly I no longer have access to those items and to be honest not sure I'd get it right?


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 06, 2012 9:58 am 
Devout Dirtbag

Joined: Tue Apr 12, 2011 11:56 am
Posts: 118
Location: Auckland, New Zealand
...so, if you don't have the gear, an option is your local general engineers who DO have the gear and a hairy-arsed apprentice with too much unbilled time on his hands... Its a 10 minute job at best and will save you hunting worldwide for replacements


Top
 Profile  
 
 Post subject:
PostPosted: Wed Jun 06, 2012 12:57 pm 
Retro Guru
User avatar

Joined: Mon Mar 02, 2009 4:22 pm
Posts: 1481
I've not had a lot of success straightening them. Always just a little bit out. However, I've got them close, and on a bike you don't do too many miles on they eventually wear back into true, sooner if it's already worn through the case hardening on the surface.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 6 posts ] 

All times are UTC [ DST ]


Who is online

Users browsing this forum: No registered users and 34 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

About Us

Follow Retrobike

Other cool stuff

All content © 2005-2015 Retrobike unless otherwise stated.
Cookies Policy.
bikedeals - the best bike deals in one place
FatCOGS - Fat Chance Owner's Group

Powered by phpBB® Forum Software © phpBB Group