J - Terms

| A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | R | S | T | U | V | W |

J SECONDS (DC Motors)
J is the per unit moment of inertia. It is defined as the time in seconds to accelerate the motor armature to rated base speed using rated full load torque.

JACKSCREW
A device used for leveling the positioning of a motor. These devices are adjustable screws fitting on the base or motor frame. Also a device for removing endshields from a motor assembly.