Torque kgcm (what is kgcm)?
A motor with 1 kg.cm torque is capable of holding a 1 kg weight at a radial distance of 1 cm.

Here is a diagram to explain.



Torque is the cross-product of force and distance: \$ \tau =  F \times d \$. So the same weight, at twice the radial distance, will require double the torque.



Note that the measurement 'kgcm' is 'kilograms-force × centimetres' and would be clearer if written as \$ kg_F.cm \$, which avoids confusion between kg (mass) and \$ kg_F \$ (force.)

The \$ kg_F \$ unit is not used for engineering work any more because \$ 1 kg_F \$ is defined as the force on a 1 kg weight in 'standard Earth sea-level gravity', but no-one can agree on a precise value for 'standard Earth sea-level gravity'. Plus, it's not a very intuitive unit when you aren't on Earth.

The SI unit of N.m, which doesn't depend on the exact value of Earth gravity, is preferred instead.