Maximum chuck RPM - how much danger? - Woodworking Talk - Woodworkers Forum
 
Thread Tools Display Modes
post #1 of 4 Old 08-07-2008, 10:24 AM Thread Starter
Junior Member
 
Byrney's Avatar
 
Join Date: Feb 2008
Location: London
Posts: 23
View Byrney's Photo Album My Photos
Maximum chuck RPM - how much danger?

How seriously should maximum chuck RPM figures be taken? For example, if I spin my Vicmarc VM120 (max quoted speed 2500rpm) at the top speed of my lathe (3200 rpm), is it likely to explode and kill me, or is Vicmarc being very conservative with its specifications? Does anyone know of a chuck failing due to high rpm? What are the actual risks of running a chuck faster than it says on the label?

I don't see why a 5" woodturning chuck would have as low a limit as 2500rpm. If you look at specs for 5" engineering chucks, they're generally good to 5000rpm and beyond. Manufacturers obviously intend even their bigger chucks to be used for very small workpieces because they supply the appropriate jaws - so why would they make the chuck unable to withstand the high speeds necessary for turning 1" stock and smaller?
Byrney is offline  
Sponsored Links
Advertisement
 
post #2 of 4 Old 08-07-2008, 10:38 AM
Senior Member
 
Join Date: Sep 2007
Location: Baxter, Tennessee
Posts: 3,257
View john lucas's Photo Album My Photos
Personally I never turn that fast. I have used my vicmarc100 at 3000 to turn some small parts but I usually even turn these at 2000 or less. I think the maximum speed would only be a problem if you were turning objects the size that the 120 would handle. Smaller stuff wouldn't be a problem but I would contact Vicmarc. Their customer service has always been great when I had a question.
john lucas is offline  
post #3 of 4 Old 08-07-2008, 12:34 PM
Senior Member
 
TS3660's Avatar
 
Join Date: Mar 2008
Location: Ft. Mill, SC
Posts: 1,465
View TS3660's Photo Album My Photos
Yes, it will blow apart and kill everything within 10 miles except gray squirrels, which can survive anything.
Attached Images
 

Bud

"Veggie burgers aren't bad if you put enough meat on them"
TS3660 is offline  
Sponsored Links
Advertisement
 
post #4 of 4 Old 08-11-2008, 12:50 PM
Just makin chips fly
 
Join Date: Mar 2008
Location: FL an NC
Posts: 642
View The woodsman's Photo Album My Photos
max chuck rpm

I have never heard of a chuck blowing apart,but then thats not to say it hasn't happened.My BIG concern at that spead would be the piece flyin off and klunkin me in my pretty face.

Ken
The woodsman is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Woodworking Talk - Woodworkers Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
what kind of chuck would i use to turn wood if i would use a chuck to turn wood? intolight Woodturning 7 12-01-2010 02:18 AM
Maximum Dado Width jodell8964 Power Tools & Machinery 9 12-26-2008 02:39 PM
Maximum size/weight for upper cabinets? jayceetoo Design & Plans 5 08-12-2008 12:45 PM
Need a screw chuck Roll Tide Woodturning 6 04-13-2008 02:04 PM
Longworth chuck Bill Bolen Woodturning 2 01-13-2008 08:38 PM

Posting Rules  
You may post new threads
You may 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

 
For the best viewing experience please update your browser to Google Chrome