The Spares Company
Club Shop/Regalia
Parent Website
Contact Officials
Machine Registrar
Club Secretary
Membership Secretaries
MPH Editor and Forum Administrator.
Section Newsletters
Technical Databases
Photos
Home
What's new
Latest activity
Forums
New posts
What's new
New posts
Latest activity
Information
Bike Modifications
Machine Data Services
Manufacturers Manuals
Spare Parts Listings
Technical Diagrams
Whitakerpedia (Vincent Wiki)
The Club
MPH Material Archive
Flogger's Corner
Obituaries
VOC Sections
Local Sections
Local Section Newsletters
Miscellaneous
Club Assets
Club History
Club Rules
Machine Data Services
Meeting Documents
Miscellaneous
Essential Reading
Magazine/Newspaper Articles/Letters
Adverts and Sales Brochures
The Mighty Garage Videos
Bikes For Sale (Spares Company)
Log in
Register
What's new
New posts
Menu
Log in
Register
Install the app
Install
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Primary side main bearings
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="Robert Watson" data-source="post: 117005" data-attributes="member: 38"><p>[ATTACH=full]32502[/ATTACH]</p><p></p><p>These main bearing outer races don't move. That's on top of .002 interference. </p><p></p><p>Also I meant to mention in my recent post about tapered roller mains. They were in the engine when I assembled the rest of the machine. After startup it went 100 miles and had a catastrophic failure. The bearings were made by Bower and the steel cages which separate the rollers were defective, they were cut 95% through at one end. One got caught by the bearing and rolled the whole cage up into the rollers. We only know this because the other one had not failed and is to this day sitting on my bench to remind me to check parts you get from even the most reliable sources. It was then i did a lot of research on fitting them with .003 crush. I talked with bearing suppliers, manufacturers reps and a lot of experienced people. Answers ran the whole gamut from "no wonder your bearings disintegrated" to .003 is not enough. In the end I settled on .003. That was some 120,000 miles ago. I don't worry about it any more.</p></blockquote><p></p>
[QUOTE="Robert Watson, post: 117005, member: 38"] [ATTACH type="full"]32502[/ATTACH] These main bearing outer races don't move. That's on top of .002 interference. Also I meant to mention in my recent post about tapered roller mains. They were in the engine when I assembled the rest of the machine. After startup it went 100 miles and had a catastrophic failure. The bearings were made by Bower and the steel cages which separate the rollers were defective, they were cut 95% through at one end. One got caught by the bearing and rolled the whole cage up into the rollers. We only know this because the other one had not failed and is to this day sitting on my bench to remind me to check parts you get from even the most reliable sources. It was then i did a lot of research on fitting them with .003 crush. I talked with bearing suppliers, manufacturers reps and a lot of experienced people. Answers ran the whole gamut from "no wonder your bearings disintegrated" to .003 is not enough. In the end I settled on .003. That was some 120,000 miles ago. I don't worry about it any more. [/QUOTE]
Insert quotes…
Verification
The Series 'A' Rapide was known as the '********' Nightmare?
Post reply
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Primary side main bearings
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top