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
General Chat (Vincent Related)
Alp Sungurtekin 666 Vincent Speedweek SCTA BNI August 8-14, 2020
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="Monkeypants" data-source="post: 125770" data-attributes="member: 2708"><p>Here's what I have learned about Superblends.</p><p>1. Superblend is a marketing term Norton came up with when they went to the (e) designation bearing to solve main bearing failures that occured with the Combat engine. Bearing manufacturers don't know the term</p><p>2. The barrel shaped roller idea is a bit of an urban myth.</p><p>3. The E designation stands for extreme service. These bearings are rated for a higher shock load than the same size bearing without the E designation.</p><p>4. The bearing change at Norton did seem to solve the problem of mainbearing failure. They also made other changes at the same time, ( stronger cases, stronger crank, bigger engine, lower compression) so it's hard to know what exactly happened there.</p><p>I was able to get e spec bearings in the 30x72 mm size, not sure if they are available in standard Vincent size.</p><p></p><p>From reading about Picador testing, the crank issues were with mainshaft failure, big end failure and flywheels coming loose, walking out of alignment.</p><p>The problems were solved with the Picador crank which used special mainbearings that had standard OD but ID enlarged to 1 1/8" for the oversized Picador crank mainshafts. It also had a non serviceable crankpin that had a full press fit, no nuts used. The pin also went all the way through the flywheels at full diameter, it wasn't shouldered down.</p><p>This gave a much greater connection area, maybe three or four times as much as the standard crankpin to flywheel connection.</p><p> It was also at a higher interfence fit than the motorcycle engine version.</p><p>Those were referred to as a five ton fit ( hydraulic press reading) while the Picador crankpin to flywheel was at ten tons or more.</p><p>This setup was tested to 115 HP on a Supercharged engine and survived.</p><p>It also survived a continuous 65 bhp for 12 hrs as needed for the Picador engine.</p><p>Standard cranks came apart in as little as 15- 20 minutes at 48 bhp as produced by the Shadow engines ( not 55 as advertised in Brochures!)</p><p></p><p>Jim Comstock plotted the shape of a new "Superblend" roller bearing and found it to be the same as any standard roller bearing.</p><p>He had to destroy a new bearing to make the video. Kind of a waste but he wanted to know if there really was this shape difference as is so widely believed.</p><p></p><p>[MEDIA=youtube]kj1Eu0zS33E[/MEDIA]</p></blockquote><p></p>
[QUOTE="Monkeypants, post: 125770, member: 2708"] Here's what I have learned about Superblends. 1. Superblend is a marketing term Norton came up with when they went to the (e) designation bearing to solve main bearing failures that occured with the Combat engine. Bearing manufacturers don't know the term 2. The barrel shaped roller idea is a bit of an urban myth. 3. The E designation stands for extreme service. These bearings are rated for a higher shock load than the same size bearing without the E designation. 4. The bearing change at Norton did seem to solve the problem of mainbearing failure. They also made other changes at the same time, ( stronger cases, stronger crank, bigger engine, lower compression) so it's hard to know what exactly happened there. I was able to get e spec bearings in the 30x72 mm size, not sure if they are available in standard Vincent size. From reading about Picador testing, the crank issues were with mainshaft failure, big end failure and flywheels coming loose, walking out of alignment. The problems were solved with the Picador crank which used special mainbearings that had standard OD but ID enlarged to 1 1/8" for the oversized Picador crank mainshafts. It also had a non serviceable crankpin that had a full press fit, no nuts used. The pin also went all the way through the flywheels at full diameter, it wasn't shouldered down. This gave a much greater connection area, maybe three or four times as much as the standard crankpin to flywheel connection. It was also at a higher interfence fit than the motorcycle engine version. Those were referred to as a five ton fit ( hydraulic press reading) while the Picador crankpin to flywheel was at ten tons or more. This setup was tested to 115 HP on a Supercharged engine and survived. It also survived a continuous 65 bhp for 12 hrs as needed for the Picador engine. Standard cranks came apart in as little as 15- 20 minutes at 48 bhp as produced by the Shadow engines ( not 55 as advertised in Brochures!) Jim Comstock plotted the shape of a new "Superblend" roller bearing and found it to be the same as any standard roller bearing. He had to destroy a new bearing to make the video. Kind of a waste but he wanted to know if there really was this shape difference as is so widely believed. [MEDIA=youtube]kj1Eu0zS33E[/MEDIA] [/QUOTE]
Insert quotes…
Verification
The Series 'A' Rapide was known as the '********' Nightmare?
Post reply
Home
Forums
Forums: Public Access
General Chat (Vincent Related)
Alp Sungurtekin 666 Vincent Speedweek SCTA BNI August 8-14, 2020
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