Motor Nomenclature
| Td | oz-in (N-m) | Torque (rotating moment) expressed in oz-in or Newton meters (Nm) |
| Tp | oz-in (N-m) | Peak instantaneous torque expressed in oz-in
or Newton- meters (Nm) |
| Tl | oz-in (N-m) | Load torque expressed in oz-in or Newton- meters (Nm) |
| Rm | Ohms | Phase to phase resistance of the motor windings |
| Tf | oz-in (N-m) | Motor friction torque |
| Jm |
oz-in-sec 2 |
Motor inertia |
| Jl | oz-in-sec 2 (Kg-m-s2) |
Reflected load inertia |
| Kv | Volts/KRPM Volts/(rad/sec) |
Motor Back EMF constant |
| w | RPM (radians/sec) |
Motor angular velocity |
| a | rads/sec/sec | Shaft angular acceleration |
| Km | (oz-in)squrt(watts) | Motor constant ( This is a figure of merit of e motor which describes its ability to convert power input to torque output. |
| Kd | oz-in/krpm N-m/rad/sec |
Damping coefficient (describes the motors speed related torque losses (windage and magnetic losses) |
| Kt | oz-in/amp N-m/amp |
Torque sensitivity. It is the measure of the motor's ability to convert input current to rotating moment (torque) |
| Ip | amps | Peak current at stall |
| Pp | watts | Power input with shaft stalled at Tp |