P21NRXB-LNF-NS-00
The P21NRXB-LNF-NS-00 from Pacific Scientific delivers a thermal resistance of 5.5 Mounted C/Watt and a rotor inertia of .012 (kg-m2x10^-3). Part of the POWERMAX II P Motors, this stepper motor offers a holding torque of .82 Nm, a NEMA 23 frame, and achieves 3000 rpm.
It is rated for 58N axial force, 89N radial force, and weighs 0.45 kg. Operable in parallel or series setups, it is IP23 compliant.