CALCULATORS / MECHANISMS

Belts, pulleys and chains

No-slip kinematics with explicit tension and efficiency assumptions.

pitch diameters, driver RPM → speed ratio, belt speed

pulley pitch diameters, center spacing → belt length or feasible center distance

torque, pitch radius, preload assumption → tight/slack tension difference, shaft load

pulley sizes, spacing, friction or tooth engagement → wrap angle, conditional traction

pitch, target ratio, center distance → pulley teeth, belt tooth count, geometric fit

sprocket teeth, RPM, input torque, efficiency → ratio, output speed, chain force

pitch, tooth counts, center spacing → link count, adjusted spacing

sprocket tooth count, speed → kinematic speed variation

wrap angle, friction, holding tension → load tension, required holding force

line pull, drum radius, layers, rope diameter → drive torque, speed, winding capacity