Gearbox Stages	2	3	4
MAX. Continuous output torque (Nm)	0.25	0.3	0.35
MAX. Instant mobilization torque (Nm)	0.3	0.38	0.41
Reduction ratio	16,21,26,28,35	62,83,103,111,138,150,172,186,231	243,326,406,439,546,590,679,734,794,913,987,1135,1227,1526
Outer diameter (mm)	φ12
Gearbox length（mm)	17.5	23.2	27.6
Maximum efficiency(%)	75	65	55
Recommended temperature range(℃）	-40~+100
MAX. Gearbox weight (G)	12.4	15.5	18.6
Maximum transmission power (continuous)（W)	2.2	1.1	0.6
Maximum transmission power(instantaneous)（W)	2.8	1.4	0.8
Air load average empty return (°)	1.5	1.8	2.1
The maximum axial load (dynamic)(N)	20	20	20
The maximum radial load (4mm from France)(N)	45	60	60
Output Bearing	Ball bearing
Axial gap(mm)	＜0.1

Combined product	Model	Series
dc motor	1220 Φ12mm Coreless metal brush motor	2-4
dc motor	1228 Φ12mm Coreless metal brush motor	2-4
brushless motor	1226 Φ12mm coreless metal brush motor	2-4
brushless motor	1232 Φ12mm coreless metal brush motor	2-4
encoder	CB-ST-12	Magnetic

Model	Rated voltage	Air load data		Load data			Total length	Gearbox rated torque	Gearbox instantaneous torque	Reduction ratio	Gearbox length L1
Model	Rated voltage	Air -load speed	No-load current	Load speed	Load current	Torque	Total length	Gearbox rated torque	Gearbox instantaneous torque	Reduction ratio	Gearbox length L1
	(V)	（rpm）	（mAmax）	（rpm）	（AMax）	（NM）	(mm)	(NM)	(NM)	/	(mm)
ZWSMD012012-16	12	1836	117	1836	1	0.028	43.5	0.25	0.3	16	17.5
ZWSMD012012-21	12	1365	117	1365	1	0.037	43.5	0.25	0.3	21	17.5
ZWSMD012012-26	12	1098	117	1098	1	0.046	43.5	0.25	0.3	26	17.5
ZWSMD012012-28	12	1015	117	1015	1	0.050	43.5	0.25	0.3	28	17.5
ZWSMD012012-35	12	816	117	816	1	0.063	43.5	0.25	0.3	35	17.5
ZWSMD012012-62	12	465	117	465	1	0.095	49.2	0.3	0.38	62	23.2
ZWSMD012012-83	12	346	117	346	1	0.128	49.2	0.3	0.38	83	23.2
ZWSMD012012-103	12	278	117	278	1	0.159	49.2	0.3	0.38	103	23.2
ZWSMD012012-111	12	257	117	257	1	0.172	49.2	0.3	0.38	111	23.2
ZWSMD012012-138	12	207	117	207	1	0.214	49.2	0.3	0.38	138	23.2
ZWSMD012012-150	12	191	117	191	1	0.231	49.2	0.3	0.38	150	23.2
ZWSMD012012-172	12	166	117	166	1	0.266	49.2	0.3	0.38	172	23.2
ZWSMD012012-186	12	154	117	154	1	0.288	49.2	0.3	0.38	186	23.2
ZWSMD012012-231	12	124	117	124	1	0.357	49.2	0.3	0.38	231	23.2
ZWSMD012012-243	12	118	117	118	0.8	0.318	53.6	0.35	0.35	243	27.6
ZWSMD012012-326	12	88	117	71	0.8	0.350	53.6	0.35	0.35	326	27.6
ZWSMD012012-406	12	70	117	60	0.8	0.350	53.6	0.35	0.35	406	27.6
ZWSMD012012-439	12	65	117	56	0.8	0.350	53.6	0.35	0.35	439	27.6
ZWSMD012012-546	12	52	117	47	0.8	0.350	53.6	0.35	0.35	546	27.6
ZWSMD012012-590	12	48	117	44	0.8	0.350	53.6	0.35	0.35	590	27.6
ZWSMD012012-679	12	42	117	38	0.8	0.350	53.6	0.35	0.35	679	27.6
ZWSMD012012-734	12	39	117	36	0.8	0.350	53.6	0.35	0.35	734	27.6
ZWSMD012012-794	12	36	117	33	0.8	0.350	53.6	0.35	0.35	794	27.6
ZWSMD012012-913	12	31	117	29	0.8	0.350	53.6	0.35	0.35	913	27.6
ZWSMD012012-987	12	29	117	27	0.8	0.350	53.6	0.35	0.35	987	27.6
ZWSMD012012-1135	12	25	117	24	0.8	0.350	53.6	0.35	0.35	1135	27.6
ZWSMD012012-1227	12	23	117	22	0.8	0.350	53.6	0.35	0.35	1227	27.6
ZWSMD012012-1526	12	19	117	18	0.8	0.350	53.6	0.35	0.35	1526	27.6

5V Gear Motor (12mm)

Datenblatt

Parameters：

Drawing:

Modular Assembly:

Performance Data:

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