Welcome to the Arbtalk.co.uk | Discussion Forum for Arborists.

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.


Chainsaws Discuss chainsaw makes and models, pros and cons. Get advice on maintenance and day to day usage.


Reply
 
LinkBack Thread Tools Display Modes
Old 15-05-12   #1 (permalink)
Senior Member
 
predator's Avatar
 
Join Date: Feb 2011
Location: ST HELENS
Posts: 1,240
Question rim sprocket vs spur sprocket

JUST WONDERING WHY ??????????

whats the advantages etc as i,am a duffer/thick & unsure why is there a rim sprocket used anyway etc
predator is online now  
Reply With Quote
Old 15-05-12   #2 (permalink)
Senior Member, Raffle Sponsor 2011, 2012, 2013
 
Rover's Avatar
 
Join Date: Apr 2011
Location: Scredington, Lincs
Posts: 2,452

Rim sprocket is much cheaper to replace and gives an easy option of using different configurations for different bar sizes etc.
__________________
www.DanielDoes.co.uk
Rover is online now  
Reply With Quote
Old 15-05-12   #3 (permalink)
Senior Member, Raffle Sponsor 2012, 2013
 
spudulike's Avatar
 
Join Date: Sep 2010
Location: Hertfordshire
Posts: 6,369
Re: Question rim sprocket vs spur sprocket

Rim drives tend to be smoother and harder wearing than spur sprockets. Very generally, rims are mostly found on pro saws ......I KNOW THERE ARE EXCEPTIONS
__________________
Spud:
Life is tough but it's tougher when you're stupid

"speed's just a question of money. How fast you wanna go?".
spudulike is offline  
Reply With Quote
Old 15-05-12   #4 (permalink)
Senior Member, Raffle Sponsor 2013
 
agg221's Avatar
 
Join Date: Mar 2011
Location: Essex
Posts: 2,509
Re: Question rim sprocket vs spur sprocket

I am told that rim sockets hold up better to stop/start cutting while spur sprockets hold up better to constant, heavy load, as found in milling. I've tried both for milling and this seems to be correct.

Alec
agg221 is offline  
Reply With Quote
Old 16-05-12   #5 (permalink)
Senior Member, Raffle Sponsor 2011
 
blazer's Avatar
 
Join Date: Sep 2010
Location: north oxfordshire
Posts: 675
Re: Question rim sprocket vs spur sprocket

I fitted rim sprockets to all my saws (both of them - joking) The advantage is you can fit larger dia sprockets so I fitted an 8T .325 to my MS 280 to give it a bit more 'wiz' and fitted an 8T 3/8 to my MS 460 (twin port exh) when using a 16" bar - that really 'wizzing' through, makes my MS390's performance like a 'push and go toy'. Overall I found them running smother.
__________________
If at first you don't succeed, try once again and give up - works for both relationship and engineering problems

Last edited by blazer; 16-05-12 at 08:45 PM..
blazer is offline  
Reply With Quote
Old 16-05-12   #6 (permalink)
Supporting Member, Raffle Sponsor 2008, 2009, 2010, 2011
 
Join Date: Mar 2008
Posts: 8,066
Re: Question rim sprocket vs spur sprocket

I would say rim sprockets last way, way, way longer than spur sprockets.
Mesterh is offline  
Reply With Quote
Old 18-05-12   #7 (permalink)
Senior Member, Raffle sponsor 2008, 2009
 
Husky D's Avatar
 
Join Date: Aug 2008
Location: Gloucestershire
Posts: 71
Re: Question rim sprocket vs spur sprocket

Spurs sprockets I find are very durable and hard wearing and as spud said generally are found on the domestic/semi pro and some pro saws.
Rims have the benefit of "floating" on the splines of the clutch drum and can move laterally allowing the chain to be kept in line with the sprocket even if pulled off line in the cut where spurs don't allow this so can cause wear to the chain.
Husky D is offline  
Reply With Quote
Old 18-05-12   #8 (permalink)
Site Sponsor
 
Rob D's Avatar
 
Join Date: Jan 2008
Location: Lymington, Hampshire
Posts: 4,156
Re: Question rim sprocket vs spur sprocket

Quote:
Originally Posted by agg221 View Post
I am told that rim sockets hold up better to stop/start cutting while spur sprockets hold up better to constant, heavy load, as found in milling. I've tried both for milling and this seems to be correct.

Alec
I'd agree with that. I do find on big saws and long bars you're replacing the rim pretty regularly at least every x2 chains. A spur sprocket does seem to last longer when milling with a large saw.


But rims are cheaper, easier to change and as said very simple to swap a smaller one for a larger if you want to increase chain speed so if you have the choice I'd always go for a rim and sprocket set up. They offer more support to the chain drive links as well.
__________________
Visit us at www.chainsawbars.co.uk - we have the largest range of bars and chains for Stihl and Husky chainsaws.
Rob D is online now  
Reply With Quote
Reply

Thread Tools
Display Modes

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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
0.325 sprocket for 066 RDB logs Chainsaws 15 01-11-11 08:10 PM
8 Sprocket iain_chestnut Chainsaws 6 02-03-11 12:23 AM
what sprocket? jrose Chainsaws 6 21-12-10 12:36 AM
best way to get a sprocket off ? Ross Beaumont General chat 9 22-10-10 10:52 PM
880 rim sprocket jojam Chainsaws 3 10-05-10 11:35 PM


Find tree care advice
Single Sign On provided by vBSSO

Search Engine Friendly URLs by vBSEO 3.3.0