 | Home > Off Topic > Shackle pulley blocks |
 
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| excossack Member Since: 22 Feb 2012 Location: North West Posts: 5843   
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While browsing ebay for some other bits I spotted the link below in the “People who viewed this item also viewed”
https://www.ebay.co.uk/itm/Winch-Snatch-Bl...0009.m1982 Out of interest, anyone tried one? 1999 Defender TD5 110 Regards John M0VAZ Econet Station 48 no clock |
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28th Dec 2017 7:25pm |
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| leeds Member Since: 28 Dec 2009 Location: West Yorkshire Posts: 8580
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Have not actually used one or seen one.
Looking at the photographs I am uncertain if they are cast steel which has had the bore machined to take the bearing or if they are machined fully from a steel block and then a rough/uneven paint finish applied. Now would I want to mess around in the mud, wearing gloves with a nut and R clip? Or would I go for something like THIS Yes I have two or three swingaway pulley blocks in our kit. Brendan |
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28th Dec 2017 8:09pm |
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| geobloke Member Since: 06 Nov 2012 Location: Nottinghamshire Posts: 4410
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I am with Brendan on this one and will add that the pulley block in his link does ensure that the winch line does not inadvertently come off the wheel. I can see that the shackle version would risk this happening, potentially snagging the line, lessening its life and as a worst case allowing the line to snap under load...
...at which point what happens next is in the hands of the gods.... It is also noticeable that the groove in the pulley is not overly deep which may hasten the above. I also have two or three of the pulley blocks and they have never let me down. |
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28th Dec 2017 8:32pm |
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| excossack Member Since: 22 Feb 2012 Location: North West Posts: 5843
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I've got a couple of the swing away ones that Brendan posted and one of the type with the built in hook such as http://www.recovery-equipment.co.uk/4-5-di...k-winching
I think I will be sticking the ones I have now rather than the one mentioned in the Ebay advert 1999 Defender TD5 110 Regards John M0VAZ Econet Station 48 no clock |
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28th Dec 2017 10:20pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17360 
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The first time the shackle pin unscrews under load after the R-clip comes out, and the sheave goes through your windscreen, or worse, head, you'll wish you'd bought a swing-away.
There is a reason why you should never put a rotating load on a shackle pin. |
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28th Dec 2017 10:45pm |
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| leeds Member Since: 28 Dec 2009 Location: West Yorkshire Posts: 8580
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OK I may get shouted about the comment I am about to make.
Any industrial lifting gear has to have various approval marks on by law. If people are suspended by any device in any industrial situation I am guessing that the equipment has to be approved/tested/inspected by law. Also people involved will have to have required training and certificates etc. I am guessing that the same sort of things applied to industrial winching/recovery work. As far as I am aware there are no legal obligations on equipment/training for recreational/offroad recovery equipment and practises. My suggestion would be to buy any 4x4 recovery equipment from reputable traders who can explain things like WLL to you and the difference between different materials. Also can give you an indication of the potential forces involved. Buying cheap gear off sites like ebay may be tempting but the consequences when things go wrong could literally be deadly! Brendan |
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29th Dec 2017 12:08am |
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| lambert.the.farmer Member Since: 11 Apr 2012 Location: harrogate Posts: 2006  
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Those ebay ones are a verdict of death by misadventure waiting to happen. Rhubarb and custard let fly with their secret weapon.
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29th Dec 2017 7:05am |
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| Supacat Member Since: 16 Oct 2012 Location: West Yorkshire Posts: 11018 
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Not sure there's a difference between the two with that regard. The rope on a swingaway block can still come off the sheave and be damaged as it sits in the space between the flanges. I'd be more concerned about having a 16mm wide channel with only a 10mm to 12mm rope. Not sure about synthetic but with wire rope it's important that the shoulders of the sheave support the rope under load to stop it flattening. Sheaves should be matched to the rope diameter and one that good for a 10mm rope will not be suitable for a 15mm rope; equally one that will accommodate a 15mm rope is probably not suitable for a 10mm rope. I think the latter point is missed by many...  |
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29th Dec 2017 10:40am |
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| Supacat Member Since: 16 Oct 2012 Location: West Yorkshire Posts: 11018
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Here's a variation on the theme:
The Boss Ring comprising: • Premium 7075 T6 Aluminium Alloy Recovery Ring • Soft Shackle • Premium Protective Pouch Click image to enlarge https://www.all4adventure.com/product/boss-ring/ |
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6th Nov 2019 4:35pm |
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| Devon-Rover Member Since: 22 Jan 2015 Location: South Devon Posts: 914 
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Been running the Red winches Snatch rings for about 6 - 7 months now. Great piece of kit which weighs a lot less and works just as well.
Click image to enlarge Not had super long term use but given them a good few long heavy pulls and it's all holding up well.  Also can be found on Fb, Ytube, Insta & Twitter @4WDSouthwest |
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6th Nov 2019 6:25pm |
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