Polaris Discussions about Polaris ATVs.

Snatch Block

Thread Tools
 
Search this Thread
 
Old Feb 16, 2009 | 04:41 PM
  #21  
skinnykid's Avatar
Thread Starter
|
Range Rover
Joined: May 2008
Posts: 114
Likes: 0
Default ****** Block

<div class="FTQUOTE"><begin quote>Originally posted by: slikjr

Physics 101: I'll keep this in the simplest terms possible....

- A ****** block doubles the pulling power because at the motor (cable reel) it is still taking in the same amount. However, because it is doubled back to the object being pulled, it is pulling in the same amount of cable at HALF THE SPEED; hence double the pulling power. It's "mechanical advantage". Sit on the ground and tie a rope to a tree. Now pull yourself towards the tree with the rope. Then, attach a pulley (****** block) to the tree. Tie one end of the rope to your ankle, and pull on the other end. For the same amount of rope as you pulled in the first time, you will move half as far and will be using half the effort.



And... if your line is rated for 1,500lbs and use a ****** block and pull way 2,000lbs it will not break. You are "doubling" the line so in theory it will be twice as strong. However, because the force of firction at the pulley, it's not quite twice as strong. For arguments sake though, you will be fine.</end quote></div>

awesome thanks
 
Reply
Old Feb 16, 2009 | 06:09 PM
  #22  
skinnykid's Avatar
Thread Starter
|
Range Rover
Joined: May 2008
Posts: 114
Likes: 0
Default ****** Block

Has anyone ever noticed that when you are pulling your atv uphill with the winch, if you stop and let the winch hold it, it will slowly release and the cable will go back out?

Or is it just my winch?
 
Reply
Old Feb 16, 2009 | 06:18 PM
  #23  
Mongrol's Avatar
"Official Site Skeptic"
Joined: Sep 2007
Posts: 1,894
Likes: 0
From: B.C. Canada
Default ****** Block

My 1500 lbd Warn does not do that.
 
Reply
Old Feb 16, 2009 | 07:52 PM
  #24  
skinnykid's Avatar
Thread Starter
|
Range Rover
Joined: May 2008
Posts: 114
Likes: 0
Default ****** Block

I have plans to get a new Bigger polaris in the future. Hopefully sooner than later. When I get it I will probably just get the winch as a package that way if there are any problems then it is their deal.

I will keep this 500cc atv for the G/F and yard work and plowing since it is all set up. The bigger one will be my rider and stuff.
 
Reply
Old Feb 16, 2009 | 07:57 PM
  #25  
RticKwad's Avatar
Pro Rider
Runs Stealth!
Joined: Mar 2006
Posts: 3,336
Likes: 0
Default ****** Block

I am curious, does the ******-pulley have to be some kind of weight RATED? I ask b/c when I bought some chain
shackles they were rated at 1500-2500 lbs and winches and straps etc.

Regards,

R'
 
Reply
Old Feb 16, 2009 | 10:32 PM
  #26  
user493's Avatar
Moto Psycho
Joined: May 2008
Posts: 8,747
Likes: 3
From: Michigan
Default ****** Block

R, the ****** blocks are rated just like winches and chains, etc.

****** blocks are also useful for changing the direction of a pull, like when I winched a friend out at an angle, but you don't double the pulling power when you do that.
 
Reply
Old Feb 17, 2009 | 08:25 AM
  #27  
*5 J's*'s Avatar
Pro Rider
Joined: Apr 2008
Posts: 399
Likes: 0
From: Maine
Default ****** Block

One note on ****** blocks I didn't see in this post. If using synthetic make sure you get a ****** block with a solid pulley. On ****** blocks with pulley's that are two piece (split in the middle) the rope can get pinched in the pulley.
 
Reply
Old Feb 17, 2009 | 09:23 AM
  #28  
mrprpane's Avatar
Trailblazer
Joined: Apr 2008
Posts: 49
Likes: 0
From: southwestern nh
Default ****** Block

i bought 2 ****** blocks from kfi 8000lbs rated for 12 each plus shipping could not pass up that deal
 
Reply
Old Feb 17, 2009 | 09:57 AM
  #29  
JCDEYO25's Avatar
Pro Rider
Joined: Sep 2005
Posts: 1,647
Likes: 0
Default ****** Block

If I could just add a little info......Just be careful if your block has a double sheave, which means the pulley is 2 pieces joined at the middle... When using synthetic that seam can damage the rope at extreme pressures......If at all possible try to get a block with a single sheave(pulley is 1 piece).

John
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
ReconBayou
Kawasaki
11
Oct 31, 2022 05:37 PM
LemonTea
2) Chassis problems..
4
Oct 2, 2015 03:50 PM
nastyblaster100
General Chat
2
Sep 13, 2015 01:19 PM
John Reed
Polaris Ask an Expert! In fond memory of Old Polaris Tech.
1
Sep 9, 2015 03:46 AM

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 



All times are GMT -5. The time now is 05:00 AM.