DINGS - Precision Motion Specialist

28mm Slotless Brushless DC Motor

28ZWWC52 Rated Power is 37W and Peak Torque is 375mN.m.

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Motor part number	-	28ZWWC52
Pole pairs	-	1	1	1	1	2
Phase-to-phase resistance	Ω	0.52	1.7	4.3	6.6	1.6
Phase-to-phase inductance	mH	0.0495	0.178	0.42	0.77	0.13
Winding connection method	-	Star connection	Star connection	Star connection	Star connection	Star connection
Insulation class	-	B	B	B	B	B
Duty type	-	S2	S2	S2	S2	S1
Feedback method	-	Hall sensors	Hall sensors	Hall sensors	Hall sensors	Hall sensors
Commutation angle	-	120°	120°	120°	120°	120°
Insulation strength (Withstand voltage)	-	500VAC/1KHz/1mA/1s
Insulation resistance	-	100 MΩ/500VDC
Weight	g	170	170	170	170	170
Rated voltage	V	12	24	36	48	24
Rated power	W	30	34	35	35	37
Rated torque	mN·m	32	32	32	34	50
Rated speed	RPM	6970	8430	8370	8340	7000
Rated current	A	3.13	1.69	1.17	0.86	2
No load speed	RPM	9270	9680	9500	9400	8500
No load current	A	0.2	0.11	0.084	0.061	0.12
Motor efficiency	%	80	84	83	85	81.5
Noise (Ambient noise 20dB, test distance 1m)	dB	＜50	＜50	＜50	＜50	＜50
Thermal Resistance (No-load)	K/W	0.67	0.69	0.73	0.64	0.7
Thermal Time Constant (No-load)	S	1200	1200	1080	1100	880
Ambient temperature	℃	23	24	27	25	21.2
Max winding temperature (No-load)	℃	43.2	47.3	52.5	47.4	46.7
Torque constant	mN·m/A	10.24	18.97	27.32	39.63	25
Back-EMF constant - peak value	V/Krpm	1.52	2.81	4.04	5.87	3.7
Back-EMF constant - effective value	V/Krpm	1.07	1.99	2.86	4.15	2.62
Peak torque	mN·m	236.31	267.87	228.72	288.25	375
Peak current	A	23	14	8	7	15
Rotor inertia	g·cm²	10.2	10.2	10.2	10.2	10.2
Mechanical time constant	ms	5.06	4.82	5.88	4.29	2.61
End bell	-	Stainless steel
Bearing	-	Deep groove ball bearing
Magnet	-	Sinter NdFeB
Rotation shaft	-	Carbon steel

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