1640 Series
	6	12	18	24
Rated Voltage	6	12	18	24	V
Armature Resistance	1.3	5.8	15	26.9	Ω
Max Output	5.71	5.58	5.01	5.03	W
Max Effect	71	73	74	75	%

No-load Speed	7000	7500	7200	7200	RPM
No-load Current	0.089	0.07	0.063	0.059	A
Stall Torque	31.3	28.5	26.7	26.8	mNm
Friction Torque	0.29	0.29	0.29	0.29	mNm

Speed Constant	1285	660	415	310	rpm/V
Back Electromotive Force Constant	0.778	1.515	2.41	3.226	mV/rpm
Torque Constant	7.43	14.48	23.02	30.82	mNm/A
Current Constant	0.135	0.069	0.043	0.032	A/mNm

Speed/Torque Slope	225	265	270	270	rpm/mNm
Rotor Inductance	35	135	340	600	μH
Mechanical Time Constant	4.2	4.4	4.2	4.2	ms
Rotor Moment Of Inertia	1.8	1.6	1.5	1.5	gcm²
Angular Acceleration	174	178	178	179	.10³rad/s²

XBD-1640 Gear Motor