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DC PLANET GEAR MOTOR

28JX5K/2838

Motor Technical Data

TYPE
	Rated voltage	No-load speed	No-load current	Rated speed	Rated torque	Output power	Rated current	Stall torque	Stall current
	VDC	r/min	mA	r/min	g.cm	W	mA	g.cm	A
2838-1230	12	3000	70	2800	25	0.73	170	142	0.43
2838-1240	12	4000	80	3000	70	2.1	300	245	0.87
2838-1250	12	5000	100	4000	70	2.9	410	350	1.5

Gearmotor Technical Data

28JX5K/2838-1230

Reduction ratio	3.7	5.2	14	19	27	51	71	100	139	189	264	369
Number of gear trains	1	1	2	2	2	3	3	3	3	4	4	4
Length(L) mm	28.0	28.0	28.0	28.0	28.0	32.5	32.5	32.5	32.5	37.0	37.0	37.0
No-load speed r/min	810	588	214	158	111	58	42	30	21	16	11	8.1
Rated speed r/min	756	550	220	147	103	55	39	28	20	15	10	7.7
Rated torque kg.cm	0.08	0.12	0.31	0.43	0.61	1.1	1.5	2.2	3.0	3.8	5.0	5.0
Max. permissible load in a short time kg.cm	3	3	6	6	6	12	12	12	12	15	15	15

28JX5K/2838-1240

Reduction ratio	3.7	5.2	14	19	27	51	71	100	139
Number of gear trains	1	1	2	2	2	3	3	3	3
Length(L) mm	28.0	28.0	28.0	28.0	28.0	32.5	32.5	32.5	32.5
No-load speed r/min	1080	784	285	210	148	78	56	40	28
Rated speed r/min	810	588	214	158	111	58	42	31	24
Rated torque kg.cm	0.24	0.34	0.88	1.2	1.7	3.0	4.2	5.0	5.0
Max. permissible load in a short time kg.cm	3	3	6	6	6	12	12	12	12

28JX5K/2838-1250

Reduction ratio	3.7	5.2	14	19	27	51	71	100	139
Number of gear trains	1	1	2	2	2	3	3	3	3
Length(L) mm	28.0	28.0	28.0	28.0	28.0	32.5	32.5	32.5	32.5
No-load speed r/min	1350	980	357	263	185	98	70	50	36
Rated speed r/min	1080	784	285	210	148	78	56	41	31
Rated torque kg.cm	0.24	0.34	0.88	1.2	1.7	3.0	4 .2	5.0	5.0
Max. permissible load in a short time kg.cm	3	3	6	6	6	12	12	12	12

Mechanical Dimensions :

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