43mm Dia X 73mm Length BL4373DS (Double Shaft) (Geared) (Servo)

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Specifications

Series No: BL4373DS- – – P 2 & 8
No.	Testing Item		Tested Values					Unit
1	Nominal voltage	U_N	12	12	24	24	24	V
2	Terminal resistance, phase to phase	R	0.8	0.1	6.2	1.5	1.6	Ω
3	Output power	P_2max	43.39	354.32	21.58	93.50	87.62	W
4	Efficiency	η_max	75	83	66	78	78	%
5	No-load speed	n_o	4500	11100	4200	5700	6300	rpm
6	No-load current	I_o	0.27	0.95	0.14	0.21	0.2	A
7	Stall torque	M_H	368.34	1219.29	196.23	626.54	531.22	mNm
8	Friction torque	M_F	6.75	9.73	7.36	8.33	7.18	mNm
9	Speed constant	k_n	381.87	932.38	181.57	240.66	266.05	rpm/V
10	Back-EMF constant	k_E	2.62	1.07	5.51	4.16	3.76	mV/rpm
11	Torque constant	k_M	25.01	10.24	52.59	39.68	35.89	mNm/A
12	Current constant	k_I	0.04	0.10	0.02	0.03	0.03	A/mNm
13	Slope of n-M curve	Δ n/ ΔM	12.22	9.10	21.40	9.10	11.86	rpm/mNm
14	Mechanical time constant	τ _m	12.27	9.14	21.49	9.13	11.91	ms
15	Rotor inertia	J	95.88	95.88	95.88	95.88	95.88	gcm²
16	Angular acceleration	α_max	38.42	127.17	20.47	65.35	55.40	10³rad/s²
17	Sensor		Hall Sensor
18	Driver		DR2404
19	Weight		510					g
20	Operating temperature range		-30 ～+85
21	Commutation		Electronically commutation
22	Ball Bearing		NMB & EZO
23	Housing material		Aluminum, black anodized
24	Magnet material		Sintered Nd-Fe-B
25	Direction of rotation		Electronically reversible
The Operating Data For η max of Customer’s Specifications
26	Output Power	P_2opt	20.31	115.24	13.47	38.14	35.99	W
27	Efficiency	η_opt	75	83	66	78	78	%
28	Speed	n_opt	3891	10108	3386	5043	5568	rpm
29	Load Current	I_opt	2.26	11.58	0.86	2.03	1.92	A
30	Operating Torque	M_opt	49.87	108.92	38.01	72.26	61.75	mNm

Specifications

Series No: BL4373DS- – – P 2 & 8
No.	Testing Item		Tested Values			Unit
1	Nominal voltage	U_N	24	24	12	V
2	Terminal resistance, phase to phase	R	1.2	0.9	0.25	Ω
3	Output power	P_2max	117.14	155.95	139.83	W
4	Efficiency	η_max	79	79	77	%
5	No-load speed	n_o	6580	8880	5880	rpm
6	No-load current	I_o	0.24	0.34	0.7	A
7	Stall torque	M_H	679.99	670.80	908.36	mNm
8	Friction torque	M_F	8.26	8.66	13.44	mNm
9	Speed constant	k_n	277.50	374.78	497.25	rpm/V
10	Back-EMF constant	k_E	3.60	2.67	2.01	mV/rpm
11	Torque constant	k_M	34.41	25.48	19.20	mNm/A
12	Current constant	k_I	0.03	0.04	0.05	A/mNm
13	Slope of n-M curve	Δ n/ ΔM	9.68	13.24	6.47	rpm/mNm
14	Mechanical time constant	τ _m	9.72	13.29	6.50	ms
15	Rotor inertia	J	95.88	95.88	95.88	gcm²
16	Angular acceleration	α_max	70.92	69.96	94.74	10³rad/s²
17	Sensor		Hall Sensor
18	Driver		DR2404
19	Weight		510			g
20	Operating temperature range		-30 ～+85
21	Commutation		Electronically commutation
22	Ball Bearing		NMB & EZO
23	Housing material		Aluminum, black anodized
24	Magnet material		Sintered Nd-Fe-B
25	Direction of rotation		Electronically reversible
The Operating Data For η max of Customer’s Specifications
26	Output Power	P_2opt	45.92	62.80	59.73	W
27	Efficiency	η_opt	79	79	77	%
28	Speed	n_opt	5855	7871	5165	rpm
29	Load Current	I_opt	2.42	3.33	6.45	A
30	Operating Torque	M_opt	74.94	76.23	110.50	mNm

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43mm Dia x 73mm Length BL4373DS (Double Shaft) (Geared) (Servo) Slotless BLDC Motor

Specifications

Specifications

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