Go Back  Bike Forums > Bike Forums > BMX
Reload this Page >

Euro Seal 68mm Bottom Bracket Question

Notices
BMX Dirt, vert, flatland or street? Drop in the BMX forum to talk to other 20" riders around the world. What is the best BMX bicycle for you? Learn all about it here.

Euro Seal 68mm Bottom Bracket Question

Old 12-02-23, 05:59 AM
  #1  
Newbie
Thread Starter
 
Join Date: Nov 2023
Posts: 12

Bikes: Bianchi Siena, Framed Twenty9er

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked 5 Times in 5 Posts
Euro Seal 68mm Bottom Bracket Question

(Asked this in the mechanic forum and was told it would be a good idea to post it here since it's a BMX bottom bracket)

I'm doing some work on a Framed 29er which uses an internal cupped euro-seal BB. I'm curious why the shells cannot be tightened against the internal spacer without binding? The spacer is an exact fit to the inner race so I was sort of surprised when it stopped rotating. I'll include a picture of the BB.

MarkInMilwaukee is offline  
Old 12-04-23, 09:23 AM
  #2  
Hack
 
Join Date: Sep 2015
Location: Ottawa, Ontario, Canada
Posts: 1,233

Bikes: TrueNorth CX bike, 88 Bianchi Strada (currently Sturmey'd), 90's Giant Innova (now with drop bars), Yess World Cup race BMX, Redline Proline Pro24 race BMX Cruiser

Mentioned: 4 Post(s)
Tagged: 0 Thread(s)
Quoted: 335 Post(s)
Liked 176 Times in 123 Posts
You're putting side load on the bearing as you tighten. Too much load and the bearing binds. Same as tightening a headset too much.
Viich is offline  
Likes For Viich:
Old 12-04-23, 12:18 PM
  #3  
Retrograde Customs
 
dansjustchillin's Avatar
 
Join Date: Jun 2005
Location: Fremont, CA
Posts: 337
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 7 Post(s)
Liked 42 Times in 23 Posts
Send the drive side all the way home and you'll use the non drive side with that lockring to adjust the tension on the bearings.
dansjustchillin is offline  
Likes For dansjustchillin:

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.