Aluminum Alloy 360° Universal Side-Opening Ball Bearing Pulley

A professional swivel side-opening pulley designed specifically for complex rope rescue, hauling systems, and high-altitude zip lines. It integrates a 360° smooth-rotating swivel that self-adjusts to the direction of force, effectively eliminating edge wear and rope twisting. The side plate features a double-action locking mechanism, allowing for safe installation and removal at any point on the rope, even while under tension. Equipped with sealed precision ball bearings, it delivers a mechanical efficiency of over 90%.

Key Features

• 360° Swivel Self-Adjusting Axis: The pulley automatically aligns with the angle of tension, preventing rope twisting, tangling, or uneven edge wear during hauling, and ensuring smoother operation on traversing zip lines.

• Dual-Action Safety Locking Side Plate: Requires a two-step pressing action to open, preventing accidental opening due to impact or friction during operation. Allows for mid-line installation and removal on tensioned ropes without disconnecting the carabiner.

• Sealed Precision Ball Bearings: High rotation speed with low friction, providing a mechanical efficiency of ≥90%, significantly reducing hauling resistance and extending service life.

• Extra-Large Attachment Hole: The main attachment point features a 24mm diameter, allowing for up to three carabiners to be clipped in simultaneously, or direct integration with webbing or slings.

• High-Load Capacity: Working Load Limit (WLL) of 22kN, Minimum Breaking Strength (MBS) of 36kN, and compatible with ropes up to 13mm in diameter.

Single and Double Pulley Structure Description

• [Swivel Single Pulley]: Weighs approximately 290g; compact and agile structure suitable for single-line redirection, mobile anchors, and zip line sliding.

• [Swivel Double Pulley]: Weighs approximately 460g; features a parallel double-pulley structure. Includes a 24mm large hole at the top and an additional 16mm auxiliary attachment hole at the bottom, ideal for connecting hand ascenders to build mechanical advantage systems (such as 4:1 or 5:1 hauling systems) or for dual-rope configurations.

Specifications

• Main Material: 7075 Aircraft-grade Aluminum Alloy (Body/Side Plate), Stainless Steel (Sheave/Axle)

• Strength Rating: WLL 22kN | MBS 36kN

• Mechanical Efficiency: ≥ 90%

• Bearing Type: Sealed Ball Bearing

• Compatible Rope Diameter: ≤ 13mm

• Sheave Specifications: 37mm Center Diameter

• Testing Standard: XF494-2023