ZB Series Straight-Tooth Planetary Gearbox is a high-precision, compact transmission solution designed for dynamic motion control and high-performance automation systems. Featuring optimized straight-tooth planetary gearing, the ZB series provides exceptional torsional rigidity, low backlash, smooth transmission, and stable torque output, making it ideal for servo motor applications requiring fast response and positioning accuracy.

The gearbox adopts maintenance-free lifetime lubrication, supports any mounting orientation, and offers flexible motor flange adaptation for seamless integration with a wide range of servo and stepper motors. Its robust aluminum alloy housing and precision-ground gears ensure long operational life, high stability, and reliable performance under continuous duty.

Engineered for modern automation environments, the ZB series is widely used in robotics, CNC machinery, packaging lines, conveyors, semiconductor equipment, AGV/AMR systems, and precision motion platforms.

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Highlights

1. Flexible Installation

Supports installation in any mounting position, simplifying system design.

2. Universal Motor Adaptation

Customizable input flange for easy integration with various servo and stepper motors.

3. Maintenance-Free Operation

Equipped with lifetime synthetic grease, ensuring zero maintenance and long-term reliability.

4. Equidirectional Rotation

Input and output shafts rotate in the same direction, ideal for synchronized transmission systems.

5. Multiple Output Shaft Designs

Available in a wide range of keyed shafts, solid shafts, and customized output designs.

6. Precision Straight-Tooth Gearing

High transmission accuracy with minimized backlash, optimized for precise positioning applications.

7. High Torsional Rigidity

Reinforced construction ensures stable load handling, fast response, and improved servo performance.

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Parameters

(Extracted and formatted from your original charts)

Rated Output Torque T2N (Nm)

Ratio (i)	Stage	ZB042	ZB060	ZB090	ZB115	ZB142	ZB180	ZB220	ZB280	ZB330
3	1 stage	6	18	35	70	130	300	450	560	780
4	1	6	20	40	80	150	350	500	620	918
5	1	10	26	50	100	190	420	600	720	1050
7	1	10	30	65	130	240	480	650	900	1300
10	1	10	40	90	180	320	590	800	1250	1600
16	2	15	50	110	220	400	720	900	1800	2200
20	2	15	50	120	240	480	840	1100	2100	2500
25	2	15	60	130	260	500	900	1300	2300	2800
30	2	20	60	150	300	600	1100	1500	2600	3000
40	2	20	60	160	330	640	1200	1600	2800	3300
50	2	20	60	160	350	680	1250	1750	3000	3600
70	3	20	80	200	400	800	1500	2200	3600	4500
100	3	20	80	200	400	800	1600	2200	3900	4800
150	3	–	80	260	520	900	1800	2600	4500	5780
200	3	–	80	260	520	900	1800	2600	4600	6180

(Values rounded & formatted for clarity. Full extended table available if needed.)

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Technical Performance (General)

Parameter	Stage	Value
Emergency stop torque T2max	1/2/3	Up to 3× rated torque
Rated input speed	1/2/3	3000–4500 rpm
Maximum input speed	1/2/3	6000 rpm
Backlash (P1 precision grade)	1	≤8 arcmin
	2	≤12 arcmin
	3	≤14 arcmin
Torsional rigidity	–	3.3–213.3 Nm/arcmin
Allowable radial force	–	400–17,000 N
Allowable axial force	–	300–11,000 N
Service life	–	≥20,000 hours
Efficiency	1/2/3	97% / 94% / 90%
Working temperature	–	–10°C to +90°C
Noise level	–	57–75 dB

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Application

The ZB Straight-Tooth Planetary Gearbox is widely used in applications requiring high precision, high responsiveness, and stable torque output, including:

Automation & Robotics

• Industrial robots
• Collaborative robot joints
• Linear actuators

Machine Tools & CNC

• Positioning axes
• Automatic tool changers
• Servo feed mechanisms

Packaging & Conveying Equipment

• High-speed packaging lines
• Smart logistics equipment
• Sorting conveyors

Semiconductor & Electronics Manufacturing

• Precision motion modules
• Wafer handling equipment

AGV/AMR Drive Systems

• Wheel drive modules
• Steering actuators

Printing, Textile & Medical Automation

• Tension control
• Film feeding
• Compact precision drives