Recent Blogs
Movable-Pulley Cord System (d): Fixed-Redirect 2:1 Ledger
How a cord-and-movable-pulley system halves lifting force. Real worked example, mechanical advantage formula, and rigging examples for shop and field use.
V-grooved Rope Pulley: Ideal Groove-reaction Geometry
Compare ideal symmetric flank reactions for an entered V-groove angle. Clearance and wrap are displayed separately; traction, slip and drive capacity are not calculated.
Rope Sprocket Wheel Mechanism: How It Works, Parts, Capstan Formula and Uses Explained
Rope sprocket wheels transmit power by gripping rope in shaped pockets. Learn how they work, sizing math, and uses in elevators, mining, and marine winches.