Go Back   Team-BHP > Buckle Up > 4x4 & Off-Roading > 4x4 Excursions


Reply
 
Thread Tools Search this Thread
Old 18th December 2015, 14:48   #16
Distinguished - BHPian
 
Tejas@perioimpl's Avatar
 
Join Date: Sep 2008
Location: Bombay
Posts: 3,947
Thanked: 4,766 Times
Default Re: A Mercedes GL, 2 Grand Vitaras, a Sugarcane farm and a tow cable

Quote:
Originally Posted by Desmosedici View Post
Hi Doc,

Why 3/4" and why not D shackles. I googled the design and found it nearly similar except for the fact that the 3/4" are closer at the ends. Any particular reason? Thanks.
3/4" is basically the diameter of the pin.

Let's talk a bit about shackles.

Here you need to understand working load limit (WLL) which is stamped onto it and the safety margin.

Good quality shackles have a safety margin of 6 times.

So a 3/4" shackle that is rated at 4.75 tons will have a failure point of 6*4.75 = 28.5 tons!!!

The D shackle has two sides straight and is good for straight loads and not good for angular pulls. Also the strap gets compressed a lot in a D shackle.

However, in a bow shackle, the design helps distribute the load when forces are applied at an angle and the strap doesn't bunch up either.

Hope this answers your query?

Here's an image from google image search:

A Mercedes GL, 2 Grand Vitaras, a Sugarcane farm and a tow cable-differencesbetweenbowanddshackles.jpg

Source according to Google: http://www.beyondrigging.com

Last edited by Tejas@perioimpl : 18th December 2015 at 14:49. Reason: corrected a typo
Tejas@perioimpl is offline   (4) Thanks Reply With Quote
Old 18th December 2015, 15:08   #17
Senior - BHPian
 
Desmosedici's Avatar
 
Join Date: Nov 2009
Location: Mumbai
Posts: 1,381
Thanked: 405 Times
Default Re: A Mercedes GL, 2 Grand Vitaras, a Sugarcane farm and a tow cable

Quote:
Originally Posted by Tejas@perioimpl View Post
3/4" is basically the diameter of the pin.

Let's talk a bit about shackles.

Here you need to understand working load limit (WLL) which is stamped onto it and the safety margin.

Good quality shackles have a safety margin of 6 times.

So a 3/4" shackle that is rated at 4.75 tons will have a failure point of 6*4.75 = 28.5 tons!!!

The D shackle has two sides straight and is good for straight loads and not good for angular pulls. Also the strap gets compressed a lot in a D shackle.

However, in a bow shackle, the design helps distribute the load when forces are applied at an angle and the strap doesn't bunch up either.

Hope this answers your query?

Here's an image from google image search:

Attachment 1451456

Source according to Google: http://www.beyondrigging.com
Thanks Doc. Appreciate the crisp explanation. Thats some very good info that you have shared.
Desmosedici is offline   (1) Thanks Reply With Quote
Old 20th December 2015, 19:15   #18
BHPian
 
stuntfreak's Avatar
 
Join Date: May 2005
Location: Pune
Posts: 146
Thanked: 463 Times
Default

Enjoyed the day. More people join in on our little fun days.
stuntfreak is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
2 Grand Vitaras go offroading - At Panshet Lake sridhar-v 4x4 Excursions 24 18th September 2015 12:12
What Case equipment is this? EDIT : It's a Sugarcane Harvester agspins Commercial Vehicles 17 12th March 2013 15:33
Any issues due to the sugarcane stir in the Kolhapur-Satara belt? siddheshb Route / Travel Queries 6 17th November 2012 23:43
Pictures and Information about tow-trucks of all kinds anjan_c2007 Commercial Vehicles 4 3rd May 2011 22:53
Sony Unilink cable (bus audio cable) issue philipreji In-Car Entertainment 1 3rd January 2009 16:32


All times are GMT +5.5. The time now is 05:07.

Copyright 2000 - 2017, Team-BHP.com
Proudly powered by E2E Networks