SR25370 DC Gearmotors - Round

SR25370 Series

SR25-DC370 joins a DC370 motor to a 25 mm round spur gearbox. The available combinations list 12 V and 24 V motor options and a 4 mm output shaft.

Product Highlights

Motor voltages: 12 V, 24 V
Listed gear ratios: 8–783:1
Gearbox diameter: 25 mm
Output shaft diameter: 4 mm

Customization Available

Custom output shaft dimensions and features
Motor voltage and winding options
Gear ratios
Mounting and mechanical integration

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Product Specifications

Model	SR25370-124500-8K	SR25370-124500-12K	SR25370-124500-19K	SR25370-124500-28K	SR25370-124500-43K	SR25370-124500-64K	SR25370-124500-99K	SR25370-124500-148K	SR25370-124500-228K	SR25370-124500-340K	SR25370-124500-524K	SR25370-124500-783K	SR25370-126000-8K	SR25370-126000-12K	SR25370-126000-19K	SR25370-126000-28K	SR25370-126000-43K	SR25370-126000-64K	SR25370-126000-99K	SR25370-126000-148K	SR25370-126000-228K	SR25370-126000-340K	SR25370-126000-524K	SR25370-126000-783K	SR25370-244500-8K	SR25370-244500-12K	SR25370-244500-19K	SR25370-244500-28K	SR25370-244500-43K	SR25370-244500-64K	SR25370-244500-99K	SR25370-244500-148K	SR25370-244500-228K	SR25370-244500-340K	SR25370-244500-524K	SR25370-244500-783K	SR25370-246000-8K	SR25370-246000-12K	SR25370-246000-19K	SR25370-246000-28K	SR25370-246000-43K	SR25370-246000-64K	SR25370-246000-99K	SR25370-246000-148K	SR25370-246000-228K	SR25370-246000-340K	SR25370-246000-524K	SR25370-246000-783K
Gearbox Type	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round	Spur Gearbox - Round
Series Model	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370	SR25370
Combination Display Model	SR25370-124500-8K	SR25370-124500-12K	SR25370-124500-19K	SR25370-124500-28K	SR25370-124500-43K	SR25370-124500-64K	SR25370-124500-99K	SR25370-124500-148K	SR25370-124500-228K	SR25370-124500-340K	SR25370-124500-524K	SR25370-124500-783K	SR25370-126000-8K	SR25370-126000-12K	SR25370-126000-19K	SR25370-126000-28K	SR25370-126000-43K	SR25370-126000-64K	SR25370-126000-99K	SR25370-126000-148K	SR25370-126000-228K	SR25370-126000-340K	SR25370-126000-524K	SR25370-126000-783K	SR25370-244500-8K	SR25370-244500-12K	SR25370-244500-19K	SR25370-244500-28K	SR25370-244500-43K	SR25370-244500-64K	SR25370-244500-99K	SR25370-244500-148K	SR25370-244500-228K	SR25370-244500-340K	SR25370-244500-524K	SR25370-244500-783K	SR25370-246000-8K	SR25370-246000-12K	SR25370-246000-19K	SR25370-246000-28K	SR25370-246000-43K	SR25370-246000-64K	SR25370-246000-99K	SR25370-246000-148K	SR25370-246000-228K	SR25370-246000-340K	SR25370-246000-524K	SR25370-246000-783K
Theoretical Assembly Net Weight (kg)	0.093	0.093	0.094	0.094	0.094	0.094	0.095	0.095	0.095	0.095	0.096	0.096	0.093	0.093	0.094	0.094	0.094	0.094	0.095	0.095	0.095	0.095	0.096	0.096	0.093	0.093	0.094	0.094	0.094	0.094	0.095	0.095	0.095	0.095	0.096	0.096	0.093	0.093	0.094	0.094	0.094	0.094	0.095	0.095	0.095	0.095	0.096	0.096
Gearbox Weight (kg)	0.044	0.044	0.045	0.045	0.045	0.045	0.046	0.046	0.046	0.046	0.047	0.047	0.044	0.044	0.045	0.045	0.045	0.045	0.046	0.046	0.046	0.046	0.047	0.047	0.044	0.044	0.045	0.045	0.045	0.045	0.046	0.046	0.046	0.046	0.047	0.047	0.044	0.044	0.045	0.045	0.045	0.045	0.046	0.046	0.046	0.046	0.047	0.047
Measured Assembly Net Weight (kg)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Rated Voltage (V)	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	12	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24	24
No Load Speed (rpm)	563	375	237	161	105	70	45	30	20	13	9	6	750	500	316	214	140	94	61	41	26	18	11	8	563	375	237	161	105	70	45	30	20	13	9	6	750	500	316	214	140	94	61	41	26	18	11	8
Motor Rated-Point Output Speed (Reference) (rpm)	487.50	325.00	205.26	139.29	90.70	60.94	39.39	26.35	17.11	11.47	7.44	4.98	650.00	433.33	273.68	185.71	120.93	81.25	52.53	35.14	22.81	15.29	9.92	6.64	487.50	325.00	205.26	139.29	90.70	60.94	39.39	26.35	17.11	11.47	7.44	4.98	693.75	462.50	292.11	198.21	129.07	86.72	56.06	37.50	24.34	16.32	10.59	7.09
No Load Current (mA)	33	33	33	33	33	33	33	33	33	33	33	33	40	40	40	40	40	40	40	40	40	40	40	40	15	15	15	15	15	15	15	15	15	15	15	15	30	30	30	30	30	30	30	30	30	30	30	30
Rated Current (mA)	160	160	160	160	160	160	160	160	160	160	160	160	260	260	260	260	260	260	260	260	260	260	260	260	60	60	60	60	60	60	60	60	60	60	60	60	120	120	120	120	120	120	120	120	120	120	120	120
Stall Current (mA)	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1000	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	360	360	360	360	360	360	360	360	360	360	360	360	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500	1500
Motor Rated-Point Output Torque (Reference) (mN·m)	19.06	28.60	40.81	60.13	82.23	122.39	145.63	217.71	335.39	500.14	616.64	921.43	17.79	26.69	38.09	56.13	76.75	114.23	135.92	203.19	313.03	466.80	575.53	860.00	12.71	19.06	27.20	40.09	54.82	81.59	97.09	145.14	223.59	333.43	411.09	614.29	17.79	26.69	38.09	56.13	76.75	114.23	135.92	203.19	313.03	466.80	575.53	860.00
Theoretical Stall Output Torque (Reference) (mN·m)	101.68	152.51	217.63	320.72	438.55	652.73	776.69	1161.11	1788.73	2667.41	3288.76	4914.31	114.38	171.58	244.83	360.81	493.37	734.32	873.77	1306.25	2012.32	3000.83	3699.85	5528.60	47.66	71.49	102.01	150.34	205.57	305.97	364.07	544.27	838.47	1250.35	1541.61	2303.58	108.03	162.05	231.23	340.76	465.96	693.53	825.23	1233.68	1900.53	2834.12	3494.31	5221.45
Motor Rated-Point Output Power (Reference) (W)	0.973	0.973	0.877	0.877	0.781	0.781	0.601	0.601	0.601	0.601	0.481	0.481	1.211	1.211	1.092	1.092	0.972	0.972	0.748	0.748	0.748	0.748	0.598	0.598	0.649	0.649	0.585	0.585	0.521	0.521	0.401	0.401	0.401	0.401	0.320	0.320	1.293	1.293	1.165	1.165	1.037	1.037	0.798	0.798	0.798	0.798	0.638	0.638
Estimated Combination Efficiency (%)	60.75	60.75	54.75	54.75	48.75	48.75	37.50	37.50	37.50	37.50	30.00	30.00	60.75	60.75	54.75	54.75	48.75	48.75	37.50	37.50	37.50	37.50	30.00	30.00	60.75	60.75	54.75	54.75	48.75	48.75	37.50	37.50	37.50	37.50	30.00	30.00	60.75	60.75	54.75	54.75	48.75	48.75	37.50	37.50	37.50	37.50	30.00	30.00
Measured Assembly Efficiency (%)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Direction Of Rotation	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW	CW/CCW
Motor Diameter (mm)	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4	24.4
Gearbox Diameter (mm)	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25	25
Gearbox Length (mm)	23.5	23.5	23.5	23.5	27.5	27.5	27.5	27.5	31.5	31.5	31.5	31.5	23.5	23.5	23.5	23.5	27.5	27.5	27.5	27.5	31.5	31.5	31.5	31.5	23.5	23.5	23.5	23.5	27.5	27.5	27.5	27.5	31.5	31.5	31.5	31.5	23.5	23.5	23.5	23.5	27.5	27.5	27.5	27.5	31.5	31.5	31.5	31.5
Component Body Length Sum (Reference) (mm)	54.3	54.3	54.3	54.3	58.3	58.3	58.3	58.3	62.3	62.3	62.3	62.3	54.3	54.3	54.3	54.3	58.3	58.3	58.3	58.3	62.3	62.3	62.3	62.3	54.3	54.3	54.3	54.3	58.3	58.3	58.3	58.3	62.3	62.3	62.3	62.3	54.3	54.3	54.3	54.3	58.3	58.3	58.3	58.3	62.3	62.3	62.3	62.3
Assembly Axial Length (Drawing / Measured) (mm)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Output Shaft Diameter (mm)	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4	4
Gear Ratio (:1)	8	12	19	28	43	64	99	148	228	340	524	783	8	12	19	28	43	64	99	148	228	340	524	783	8	12	19	28	43	64	99	148	228	340	524	783	8	12	19	28	43	64	99	148	228	340	524	783
Number Of Gear Stages	3	3	4	4	5	5	6	6	7	7	8	8	3	3	4	4	5	5	6	6	7	7	8	8	3	3	4	4	5	5	6	6	7	7	8	8	3	3	4	4	5	5	6	6	7	7	8	8
Max Continuous Torque (mN·m)	29.42	29.42	39.23	39.23	58.84	58.84	98.07	117.68	117.68	117.68	147.10	147.10	29.42	29.42	39.23	39.23	58.84	58.84	98.07	117.68	117.68	117.68	147.10	147.10	29.42	29.42	39.23	39.23	58.84	58.84	98.07	117.68	117.68	117.68	147.10	147.10	29.42	29.42	39.23	39.23	58.84	58.84	98.07	117.68	117.68	117.68	147.10	147.10
Motor Torque at Gearbox Continuous Limit (Reference) (mN·m)	4.54	3.03	2.83	1.92	2.11	1.41	1.98	1.59	1.03	0.69	0.70	0.47	4.54	3.03	2.83	1.92	2.11	1.41	1.98	1.59	1.03	0.69	0.70	0.47	4.54	3.03	2.83	1.92	2.11	1.41	1.98	1.59	1.03	0.69	0.70	0.47	4.54	3.03	2.83	1.92	2.11	1.41	1.98	1.59	1.03	0.69	0.70	0.47
Gearbox Allowable Intermittent Torque (mN·m)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Gearbox Breaking Torque (Destructive Limit) (mN·m)	88.26	88.26	117.68	117.68	176.52	176.52	294.20	353.04	353.04	353.04	441.30	441.30	88.26	88.26	117.68	117.68	176.52	176.52	294.20	353.04	353.04	353.04	441.30	441.30	88.26	88.26	117.68	117.68	176.52	176.52	294.20	353.04	353.04	353.04	441.30	441.30	88.26	88.26	117.68	117.68	176.52	176.52	294.20	353.04	353.04	353.04	441.30	441.30
Backlash (°)	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Component Temperature Intersection (Reference) (°C)	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65	-30 ~ 65
Working Lifespan (hours)	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300	300
Noise Level @ 30cm (dB)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—