lind kitchen 2pcs lifting single pulley stainless steel heavy duty single wheel swivel lifting rope pulley block m20 lind kitchen specifications:<br><br> model runner diameter wheel width rotating ring width total length max load<br> m15 15mm 6mm 11mm 62mm 35kg<br> m20 20mm 7mm 13mm 75mm 75kg<br> m25 25mm 10mm 15mm 84mm 150kg<br> m32 32mm 11mm 15mm 94mm 250kg<br> m50 50mm 13mm 20mm 130mm 400kg<br><br> note: <br> the max load weight is a theoretical value, we cannot guarantee the pulley can achieved the max load,but these pulleys were standard made.<br> manual measurement, please allow 1-2mm error.<br><br> a crane pulley block is a kind of hoisting tool, also called a sheave, is a mechanism composed of a wheel on an axle or shaft that may have a groove between two flanges around its circumference.<br> a rope, cable, belt, or chain usually runs over the wheel and inside the groove, if present.<br> pulleys are used to change the direction of an applied force, transmit rotational motion, or realize a mechanical advantage in either a linear or rotational system of motion.<br><br> function: designed for hanging weight things to lighten load.<br> advantage: durable, strong, reliable, waterproof, anti-rust, anti-high temperature, corrosion resistance.<br> applications: widely used in tractive effort of steel wire rope or other rope tools.<br><br> type: single pulley block<br> material: 304 stainless steel<br> size: m20, fit for rope within 7mm.<br> color: silver tone<br> package: 2pcs