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Planetary Gear Reducer

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PS/NS Series

High Precision, High Rigidity, High Efficiency Low Inertia, Low Vibration, Low Noise, Low Temperature Rise

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Specifications

Series Models

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Dimension Description

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The PS series is a precision planetary gear reducer series developed through years of technological advancement and the introduction of international advanced technologies. This series employs high-precision hardened tooth surface grinding gears, offering high precision, high rigidity, high load capacity, high efficiency, low inertia, low vibration, low noise, and low temperature rise. These reducers are not only compatible with various servo and stepper motors from our proprietary "SenChuang" brand but also adaptable to motors from other brands.

The NS series reducer is a high-precision model based on the PS series, featuring low backlash and suitable for specialized applications requiring elevated accuracy.

Technical Specifications	Unit	Reduction Ratio		PS40	PS60	PS90	PS115	PS142
Technical Specifications	Unit	Reduction Ratio		NS40	NS60	PS90	PS115	PS142
Rated Output Torque	N·m	Single Stage	3		45	110	220	550
			4	20	45	110	220	550
			5	20	45	110	220	550
			7		40	80	170	400
			9	20
			10		40	80	170	400
		Double Stage	9		45	110	220	550
			12		45	110	220	550
			15		45	110	220	550
			16	20	45	110	220	550
			20	20	45	110	220	550
			21		45	110	220	550
			25	20	45	110	220	550
			28		45	110	220	550
			30		45	110	220	550
			35		45	110	220	550
			36	20
			40		45	110	220	550
			45	20
			49		45	110	220	550
			50		45	110	220	550
			70		40	80	170	400
			81	20
			100		40	80	170	400
Max. Output Torque	N·m			2 times Rated Output Torque
Input Moment of Inertia	kg·cm2	Single Stage	3		0.28	1.11	4.64	15.98
			4	0.03	0.27	0.98	4.3	14.28
			5	0.03	0.27	0.96	4.24	13.98
			7		0.27	0.96	4.22	13.86
			9	0.03
			10		0.27	0.95	4.21	13.83
		Double Stage	9		0.28	1.11	4.64	15.98
			12		0.27	0.95	4.3	14.28
			15		0.27	0.96	4.24	13.98
			16	0.03	0.27	0.96	4.24	13.98
			20	0.03	0.27	0.96	4.24	13.98
			21		0.27	0.96	4.24	13.98
			25	0.03	0.27	0.96	4.24	13.98
			28		0.27	0.96	4.21	13.83
			30		0.27	0.95	4.21	13.83
			35		0.27	0.96	4.21	13.83
			36	0.03
			40		0.27	0.95	4.21	13.83
			45	0.03
			49		0.27	0.95	4.21	13.83
			50		0.27	0.95	4.21	13.83
			70		0.27	0.95	4.21	13.83
			81	0.03
			100		0.27	0.95	4.21	13.83
Torsional Stiffness	N·m /arcmin		3		1.3	5.5	14	28
			4	0.35	1.3	5.5	14	28
			5	0.35	1.3	5.5	14	28
			7		1.3	4	14	28
			9	0.35
			10		1.3	4	10	28
		Double Stage	9		1.3	5.5	14	28
			12		1.3	5.5	14	28
			15		1.3	5.5	14	28
			16	0.35	1.3	5.5	14	28
			20	0.35	1.3	5.5	14	28
			21		1.3	5.5	14	28
			25	0.35	1.3	5.5	14	28
			28		1.3	5.5	14	28
			30		1.3	4.75	12	28
			35		1.3	4.75	14	28
			36	0.35
			40		1.3	4.75	14	28
			45	0.35
			49		1.3	4.75	14	28
			50		1.3	4.75	12	28
			70		1.3	4	12	28
			81	0.35
			100		1.3	4	10	28
Rated Axial Load	N	Speed 30rpm		1696	3192	4656	8547	17627
		Speed 50rpm		1430	2693	3928	7210	14870
		Speed 100rpm		1134	2135	3114	5717	11791
		Speed 150rpm		992	1867	2723	5000	10310
		Speed 300rpm		787	1482	2161	3968	8184
		Speed 500rpm		664	1251	1824	3349	6907
		Speed 1000rpm		527	992	1447	2656	5478
Backlash (No Load)	arcmin	PS Series Single Stage		8	6	5	5	5
		PS Series Double Stage		15	10	8	8	8
		NS Series Single Stage		6	5
		NS Series Double Stage		10	9
Noise (No Load)	dB(A)			58	60	62	67	72
Rated Input Speed	rpm			3000			2000
				3000			2000
				3000
Max. Input Speed	rpm			5000			3000
				5000			3000
				5000
Full Load Efficiency		Single Stage		94%	96%
Full Load Efficiency		Double Stage		92%	95%
Average Life	h			10000
Weight	kg	Single Stage		0.4	1	3	5.7	12.8
Weight	kg	Double Stage		0.6	1.2	3.7	7.3	17.2

Dimension Code	Dimension Name	PS40/NS40		PS60/NS60		PS90		PS115		PS142
		Single-stage	Double-stage	Single-stage	Double-stage	Single-stage	Double-stage	Single-stage	Double-stage	Single-stage	Double-stage
D1	Output Shaft Diameter	10		16		20		24		40
D2	Spigot Diameter	35		50		80		110		130
D3	Pitch Circle Diameter of Mounting Holes	46		70		100		130		165
D4	Mounting Hole Diameter	3.4		5		6.5		8.5		11
L	Unit Length (excluding flange)	38	51.8	53	70.5	71	95.3	89	120.5	120	168
L1	Output Shaft Extension Length	24		25		40		50		80
L2	Distance from Key to Shaft End	2		3		5		7		8
L3	Key Length	16		16		28		32		63
L4	Spigot Height	2.5		2.5		3		3.5		3.5
L5	Output Shaft Shoulder Height	3.5		3.5		4		5		5
L6	Mounting Face Thickness	5		10		12		14		20
B	End Cap Width	40		60		90		115		142
B1	Shaft Height with Key	11.2		18		22.5		27		43
B2	Key Width	3		5		6		8		12
G2	Shaft End Hole	M3*10		M4*12		M5*15		M6*15		M10*25
L7	Flange Thickness (data may vary for special flanges)	25		31		40		50		60
Dimensional Requirements for Flange Connection	Allowable Motor Input Shaft Diameter	≤8		≤14		≤19		≤24		≤35
	Allowable Motor Shaft Length (incl. spigot height)	25		31		41		53		65
	Allowable Motor Spigot Diameter	≥27		≥38		≥51		≥70		≥90
	Allowable Motor Outline Dimensions	≤40*40		≤60*60		≤90*90		≤115*115		≤142*142

Model	English	Chinese Materials	Update Date
PS Series Reducer Manual	--		2019-06-09