NUODUN ZPB Series Helical Teeth Planetary Gear Reducer is a premium, high-precision gearbox designed to deliver outstanding performance in servo-driven automation systems. Utilizing helical gears with optimized tooth contact, the ZPB series achieves exceptional transmission smoothness, ultra-low backlash, and superior torsional rigidity, making it ideal for high-accuracy positioning and high-load motion control applications.

Its robust structure, high efficiency, and maintenance-free lubrication significantly extend service life while ensuring stable, quiet operation. With flexible motor compatibility, multiple reduction ratios, and compact sizing, the ZPB series provides a reliable and high-performance solution for industrial automation, robotics, and precision machinery.

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Features

• Extremely low backlash
• Highest torsional rigidity
• Extremely high output torque
• High efficiency
• Low noise
• Maintenance-free grease lubrication

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ZPB Series Performance Table

Rated Output Torque T2N (Nm)

Ratio	ZPB042	ZPB060	ZPB090	ZPB115	ZPB142	ZPB180	ZPB220
1 Stage
3	35	95	140	330	542	988	1140
4	19	55	100	280	542	1050	1700
5	17	45	90	230	525	920	2000
7	12	35	65	150	319	650	1190
8	11	29	55	140	300	600	1100
9	10	25	50	130	280	550	1000
10	10	25	50	120	260	500	950
12	10	25	50	110	240	450	900
16	8	20	45	100	220	430	880
2 Stage
15	25	55	140	280	360	660	1140
16	22	50	130	260	340	600	1050
20	17	45	110	230	300	550	1000
22	16	40	100	210	280	530	950
25	16	40	100	200	260	510	900
28	14	35	90	190	250	490	850
30	14	30	85	180	240	470	800
35	12	30	80	170	230	450	780
40	12	30	75	160	220	430	760
50	10	25	65	150	200	400	720
70	10	25	60	140	190	380	680
80	10	25	55	140	180	360	660
100	9	25	50	130	170	340	640
3 Stage
100	8	20	45	130	160	300	590
121	8	20	45	120	150	290	570
140	8	20	40	120	150	280	560
160	7	20	40	110	140	260	540
200	7	20	35	100	130	250	520
256	7	20	30	90	120	230	500
300	6	15	28	85	115	220	480
350	6	15	28	80	110	210	460
400	5	15	25	75	105	200	450
512	5	15	25	70	100	190	430
600	4	10	20	65	95	180	420
700	4	10	20	60	90	170	400
800	4	10	20	55	85	165	380
900	4	10	20	50	80	160	350

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Additional Technical Specifications

Item	Unit	Stage	Specification
Emergency stop torque	Nm	1,2	3× rated output torque
Rated input speed	rpm	1,2	3000–5000
Maximum input speed	rpm	1,2	6000
Precision backlash P1	arcmin	2	≤3–5
Torsional rigidity	Nm/arcmin	1,2	Model dependent
Allowable radial force	N	1,2	Up to 5200
Allowable axial force	N	1,2	Up to 2500
Service life	hrs	–	≥20,000
Efficiency	%	1	≥97%
		2	≥94%
Working temperature	°C	–	–10°C to +90°C
Lubrication	–	–	Synthetic lubricating grease
Protection grade	–	–	IP65
Installation direction	–	–	Any direction
Noise level (n=3000 rpm, no load)	dB	1,2	≤58–75 (depending on size)

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Application

High-Precision Industrial Automation

• High-accuracy assembly systems
• Multi-axis servo modules
• Precision indexing systems

Robotics & Motion Platforms

• Robot joints
• Collaborative robots
• High-load servo axes

CNC & Processing Machinery

• CNC milling and engraving
• Laser cutting systems
• Precision rotary tables

Packaging & Logistics Equipment

• Automated packaging lines
• Labeling equipment
• High-speed conveying systems

Electronics & Semiconductor Manufacturing

• PCB placement & transfer
• Optical inspection systems