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SMC CRx 1" Pulley

Item: 45251.02 | Product Description »

$15.95

  (3) | Write a Review | Ask a Question | 2 Questions

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This is the lightweight rescue pulley you've been waiting for. The SMC CRx 1" Pulley is incredibly strong, yet weighs a mere 1.8 ounces.
  • Easier to carry in your life jacket pocket or swiftwater rescue kit than other, heavier pulleys.
  • The pulley works great in Z-drag 3-to-1 extraction systems, rated at an amazing 22kN (4,946 lbf) load strength.
  • High-strength aluminum sides keep it light while a stainless steel axle resists corrosion.
  • Also features a durable and smooth-running Delrin® sheave.
  • This pulley has the required prusik-minding capability for use in 3-to-1 mechanical advantage systems, making it easier to haul or lower heavy loads.

Product Reviews

  (3)
Material: High Quality Aluminum
Axle: Stainless steel
Sheave: 1.20" Delrin
Dimensions: 2.7" x 1.75"  x 1.07"
Weight: 1.8 oz  (52 g)
Pulley Strength: 22 kN = 4946 lbs.
Max Rope Size: 0.5" (13 mm)

Do you have questions about this product?

Get answers from real customers and in-house experts with AnswerBox.

2 Questions | 9 Answers
Displaying questions 1-2
  • SMC CRx 1" Pulley

    Q:

    How is a pulley used in a rescue?
    Asked on 3/31/2015 by Brent from Albuquerque NM

    5 answers

    • VERIFIED BUYER

      A:

      The pulleys are used for rescuing a pinned boat using a Z Drag. The pulleys
      are much better then merely running the ropes through carabiners, as the
      pulleys greatly reduce friction.

      Answered on 4/1/2015 by Anonymous
    • VERIFIED BUYER

      A:

      Much as a pulley is always used. To gain a mechanical advantage in moving a
      mass, or change direction of a drag without adding extra friction..
      Examples in swiftwater include a Z drag to free a pinned craft, or in a high
      line rescue to run along that lne.

      Answered on 4/1/2015 by Anonymous
    • Staff Reviewer

      A:

      Brent, they are most commonly used to set up a mechanical advantage system that multiplies pulling force on a rope. For example, this can be used for dislodging a boat pinned on a rock. If you are getting into whitewater boating we recommend that you attend a swiftwater rescue training course. If you're having trouble finding one, give us a call and ask to speak to one of rescue-trained associates.

      Answered on 4/1/2015 by Clyde from NRS
    • VERIFIED BUYER

      A:

      Usually its for mechanical advantage in unpinning boats. You can create z drag with a 3 to 1 mechanical advantage with multiple pulleys. I recommend taking a Level Four Swift Water Rescue course for education on safety and application of these techniques.

      Answered on 4/1/2015 by Anonymous
    • VERIFIED BUYER

      A:

      Pulleys are used to construct mechanical advantage systems to assist in
      tensioning a line or shifting an object that is either heavy, pinned by
      flowing water, or both. (Such as a Z-drag.
      http://en.wikipedia.org/wiki/Z-drag )
      Generally it is much too time-consuming to construct a mechanical system in
      a life-threatening situation, so they are more commonly used for tasks like
      pulling a canoe or raft off rocks or creating a diagonal taut line across a
      river to assist in a crossing or retrieving stranded swimmers who are not
      otherwise in immediate danger.
      These are all intrinsically hazardous activities with nonobvious risks.
      (Such as how a pulley can instantly become a dangerous projectile if a rope
      or anchor fails under tension.) A Swiftwater Rescue class should be taken
      to learn these skills and they should be practiced with experienced boaters.

      Answered on 3/31/2015 by Anonymous
  • SMC CRx 1" Pulley

    Q:

    Will this work as a prusik minder with a 6mm prusik on the rope from a pro compact rescue bag? I just want to make sure before I buy one. Thanks
    Asked on 3/20/2015 by Mr Green from Appleton wisconsin

    4 answers

    • VERIFIED BUYER

      A:

      yes this will work I use the 1" pulley with the pro compact rescue bag and
      5mm cord for prusik. the square edges of the pulley work as a prusik
      minder. hopefully this helps you

      Answered on 3/20/2015 by Anonymous
    • Staff Reviewer

      A:

      One of our rescue specialists tells me it should work just fine as a prusik minder.

      Answered on 3/20/2015 by Clyde from NRS
    • VERIFIED BUYER

      A:

      The pulley easily accommodates 6mm rope and it is a prusik minding pulley. That you probably already know.
      I have not tested whether a prusik knot on a 6mm rope would get caught up in the pulley, but I assume not.
      SR

      Answered on 3/20/2015 by Anonymous
    • VERIFIED BUYER

      A:

      Yes as the pulley should work with the Prusik Minder pulley system and a 6mm rope.
      David Mohring
      OptiPro Systems, LLC

      Answered on 3/20/2015 by Anonymous
Displaying questions 1-2

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REVIEW SNAPSHOT®

by PowerReviews
SMC CRx 1" Pulley
 
5.0

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (3)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

Pros

    Cons

      Best Uses

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        Reviewed by 3 customers

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        (1 of 1 customers found this review helpful)

         
        5.0

        Great little pulley

        By Aragorn

        from Md

        Pros

          Cons

            Best Uses

              Comments about SMC CRx 1" Pulley:

              Works fine for tending Blake's hitch Ddrt on 12mm rope

              • Was this a gift?:
              • No

              (1 of 1 customers found this review helpful)

               
              5.0

              excellent

              By 468Cycle

              from Atlanta

              Verified Reviewer

              Pros

              • Compact Design
              • Easy To Use
              • Reliable
              • Waterproof

              Cons

                Best Uses

                  Comments about SMC CRx 1" Pulley:

                  Get 2 of these. It's a critical part of a swiftwater rescue kit. These also have tons of other uses around the house, yard, garage and dungeon too!

                  • Was this a gift?:
                  • No
                   
                  5.0

                  Great Affordable pulley

                  By Pathfinder

                  from Algonquin Park CA

                  Verified Buyer

                  Pros

                  • Affordable
                  • Functional

                  Cons

                    Best Uses

                    • Pin Kit
                    • Z Drag
                    • Zed Drag

                    Comments about SMC CRx 1" Pulley:

                    So far the pulleys have traveled down the attawapiskat river, albany river, dumoine river, missiniabi river and soon to go down the noire river. Thankfully they have not needed to be used for an actual scenario but have served us well for all the practice scenarios. Thanks NRS

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