NATIONAL SWIVEL SINGLE PULLEY, NICKEL - 3/4"National swivel single pulley with a 3/4" solid-brass sheave on a zinc die-cast body. The swivel eye lets the pulley rotate freely with line angle as the load moves - eliminating rope-twist that would otherwise bind the sheave and bind the rope. Distinct from a fixed pulley (G3632), which keeps the sheave aligned with the mounting surface and is best for stationary direction-change at a known angle. The swivel design is the right pick when the load point moves (hauling cargo across a barn floor, hoisting a kayak off a wall mount, raising a flag on a halyard).
- Sheave: 3/4" solid brass
- Working load limit: 25 Lb
- Max rope diameter: 3/16"
- Frame: Zinc die-cast with swivel eye
- Finish: Nickel plated for rust and corrosion resistance
- Construction: Stationary single sheave, swivel mount
- Indoor and outdoor applications
- Not for overhead lifting, support of human weight, athletic or playground equipment
Tip: The 3/4" sheave is the light-utility size - flag halyards on small residential flagpoles, treehouse bucket and tool hoists for kids, light clothesline turnarounds, indoor curtain and drape pull systems, small bird feeder lift lines, and craft / theater rigging. Pair two pulleys (one fixed at the load, one at the haul point) for a basic 2:1 mechanical advantage that halves the pulling force at the cost of doubling the rope distance.