Nrs pulley smc crx. .
- Nrs pulley smc crx. The pulley works great in Z-drag 3-to-1 extraction systems, rated at an amazing 22kN (4,946 lbf) load strength. It can be used to reduce friction in rope rescue situations, and perfect for use in a 3-1 Z-drag system. Solid side plates help prevent foreign object access and reduce snags. The SMC CRx 1" Pulley is incredibly strong, yet weighs a mere 52 grams. The SMC CRx 1" Pulley is incredibly strong, yet weighs a mere 52g. 8 ounces. The pulley works great in Z-drag 3-to-1 extraction systems, rated at an amazing 22kN (2243 kgf) load strength. Lightweight, without compromising on strength, the NRS CRx Rescue Pulley weighs in at a mere 52 grams. 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. .