Pulley Differential, Metal - 4 Steps, Each

Details

Here is the corrected text: This Eisco 4-step metal pulley differential is ideal for classroom demonstrations of mechanical advantage. It features four pulley diameters: 20mm, 30mm, 40mm, and 60mm. The inner gap on each pulley measures 4.75mm. Constructed from sturdy metal, this unit has a painted black and blue finish and is mounted on a 4-inch long, 3/8-inch diameter rod. The product's overall dimensions are 6.75 inches x 3.5 inches x 3 inches.