The pulley features a wide base design that greatly enhances the effectiveness of a Prusik hitch. Its unique side plate formation enables the use of larger ropes in a compact pulley. The oversized bell - shaped top hole can accommodate a large rescue carabiner or multiple small carabiners. You can rig the single pulley with 2 carabiners, where the 2nd carabiner can act as a Becket. Solid side plates are precisely tensioned, preventing foreign object access, reducing snagging, and allowing for easy one - handed operation and secure placement anywhere along the rope. Sealed ball bearings offer optimal efficiency and reduce the performance - robbing resistance common in most multiple - component systems. They are also less likely to fail under misaligned loads or with twisted gear, unlike needle bearings. Key features and benefits include UL certification to NFPA 1983 âTâ Technical Use, which is required by most government and private agencies. The precisely tensioned side plates ensure easy one - handed use and secure positioning. Matched double - bend side plates eliminate compression under load and the resulting rope or sheave friction. Low - profile fasteners reduce snagging when moving the pulley. The wide base works most effectively with Prusik cords up to 8mm. The over - sized top hole is designed for multiple carabiners. Specifications: Type: Single. Dimensions: 9.5cm x 6.5cm x 2.8cm. Material: High Quality Aluminum. Weight: 99g. Max. Rope: 13mm. Sheave: 3.5cm. 3 Sigma MBS: 4,946 lbf (22kN). NFPA1983 Certified.
Using this single pulley is quite straightforward. First, select the appropriate carabiners according to your needs. You can use one large rescue carabiner in the oversized top hole or multiple small carabiners. If you use two carabiners, the second one can serve as a Becket. Then, place the pulley on the rope at the desired position. Thanks to the precisely tensioned side plates, you can easily operate it with one hand. When using Prusik cords, the wide base design works best with cords up to 8mm. For safety, always make sure the load is within the maximum capacity of 22kN. Avoid using the pulley with misaligned loads or twisted gear as it may affect the performance of the sealed ball bearings. When it comes to maintenance, regularly check the side plates for any signs of damage or foreign object access. Keep the pulley clean and dry. If the bearings seem to have reduced efficiency, you may need to consult the manufacturer for further inspection or replacement.
