A planetary gearbox is a gearbox with the same center of rotation for both input and output. This means that the center of the input gear rotates around the center of the output gear, and the input shaft and output shaft are aligned. The structure of the planetary gearbox reduces the transmission speed ratio while increasing the motor torque proportionally.
Planetary gearboxes are used in various occasions where efficiency and high reduction ratios are needed in a small space. With high precision and high torque volume ratio, they are very suitable for the following applications: increasing torque, reducing speed, accurately positioning and controlling reproducible machinery. In order to ensure that the selected planetary gearbox is most suitable for your application at hand, it is important to consider specifications including torque, backlash and ratio when selecting a planetary gearbox.
The PLE series gearbox is an excellent choice for applications that require good accuracy but low cost.
This high-quality planetary gearbox speed reducer gear head is a reliable and efficient choice for a variety of applications.
With 15mm output shaft, it is suitable for use with NEMA17 42mm stepper motors, 50W 100W 40mm AC servo motors.
Designed for use in office/home/production automation and consumer electronics, this gearbox offers high precision with less than 7/12 arcmin accuracy and a wide range of nominal ratios including 4:1, 5:1, 7:1, 10:1,20:1, 25:1, 35:1, 40:1,50:1, 70:1,and 100:1.
This gearbox is an excellent choice for anyone in need of a reliable and efficient speed reducer for their automation or motion control needs.
Application:Automation, Robotics, Printing machines, textile machines, packaging machines, machine tools, food industry, agricultural industry, handling systems, etc.
1x Planetary reducer
1x Key
4x Install screws
Highlight Features:
✅High-Precision Power Transmission:
≤7 Arcmin Backlash (Stage 1) – Ensures precise motion control for CNC and robotics.
16Nm Rated Output Torque – Handles heavy loads with minimal energy loss (L1 efficiency ≥96%).
✅ Dual-Motor Compatibility:
Works with 5mm Nema42 Steppers & 8mm 40mm Servos – Versatile for automation upgrades or new builds.
Wide Ratio Range – 3:1 to 100:1 ratios (customizable stages) for speed-torque optimization.
✅ Industrial-Grade Durability:
8,000 RPM Max Input Speed – Built for high-speed applications without overheating (operates at -10°C to +90°C).
Torsional Stiffness 0.7 Nm/arcmin – Reduces deflection under load for consistent accuracy.
✅ Low Noise & Smooth Operation:
≤55 dB Noise Level – Ideal for noise-sensitive environments like labs or medical equipment.
Instant Braking Torque (2× Rated Output) – Safely halts machinery in milliseconds.
✅ Compact & Efficient Design:
Lightweight Inertia (0.05-0.1 kg.cm²) – Minimizes energy waste and accelerates response time.
IP54 Protection – Resists dust and splashes in harsh workshops or outdoor settings.
Help you Solve :
❌ Poor Compatibility: Fits both Nema42 steppers and 40mm servos, eliminating mismatched upgrades.
❌ Excessive Backlash: Precision gears ensure ≤7 arcmin deviation for CNC/robotic accuracy.
❌ Overheating Failures: Rated for 4,400 RPM continuous use with -10°C to +90°C tolerance.
❌ Complex Maintenance: Sealed design and grease-free operation reduce downtime.
Application Fields:
CNC Machinery: High-torque spindle drives, milling, and engraving systems.
Industrial Automation: Robotic arms, conveyor systems, and packaging lines.
Medical Equipment: Precision imaging devices, surgical robots, and lab automation.
Renewable Energy: Solar tracker mechanisms, wind turbine pitch control.
3D Printing: Heavy-duty extruder drives and Z-axis positioning.
Why Choose This Gearbox?
✅ Plug-and-Play – Pre-machined flange and shaft for quick motor integration.
✅ Built to Last – Aerospace-grade gears and hardened steel internals.
✅ Data-Backed Performance – Tested for 30,000+ cycles under full load.
Drawing
Technical Parameter | PLE042 | |||
Max Radial Torque | N | 185 | ||
Max Axis Torque | N | 150 | ||
Torsional Stiffness | Nm/arcmin | 0.7 | ||
Max Input Speed | rpm | 8000 | ||
Rated Input Speed | rpm | 4400 | ||
Noise | dB | ≤55 | ||
Backlash | Stage 1 | ≤7 | ||
Stage 2 | ≤12 | |||
Max. Output Torque | Nm | 1.5 Times Rated Output Torque | ||
Instant Braking Torque | Nm | 2 Times Rated Output Torque | ||
Operating Temp | -10℃~+90℃ | |||
Full Load Efficiency | L1≥96%, L2≥94% | |||
Stage | Ratio | PLE042 | ||
Rated Output Torque (N.m) | Stage 1 | 3:1 | 16 | |
4:1 | 16 | |||
5:1 | 15 | |||
7:1 | 12 | |||
10:1 | 10 | |||
Stage 2 (L2) | 15:1 | 16 | ||
20:1 | 15 | |||
25:1 | 16 | |||
30:1 | 15 | |||
35:1 | 12 | |||
40:1 | 16 | |||
50:1 | 15 | |||
70:1 | 12 | |||
100:1 | 10 | |||
Moment of Inertia | Stage 1 | 3:1 | 0.10 | |
4:1 | 0.10 | |||
5:1 | 0.10 | |||
7:1 | 0.06 | |||
10:1 | 0.06 | |||
Stage 2 (L2) | 15:1 | 0.08 | ||
20:1 | 0.08 | |||
25:1 | 0.08 | |||
30:1 | 0.08 | |||
35:1 | 0.08 | |||
40:1 | 0.08 | |||
50:1 | 0.05 | |||
70:1 | 0.05 | |||
100:1 | 0.05 | |||
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2. We accept multiple payment.
1. We'll pay for export custom tax,Buyer should pay for import custom tax if needed.
2. packages will be sent out within 5 working days after the payment is received.
3. Order placed on the weekends will be handled on next Monday or Tuesday (holiday excluded).
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Return & Warranty:
1. We guarantee against any defective products.
2. We provide 30 days money back on non-defective, undamaged, unused and resalable products. Restocking fee and other fee may apply upon the condition of returned products. Shipping and handling fees are non-refundable.
3. For any returned product, please contact us through ebay message first, We will work on resolving your particular case ASAP.
On Jun 23, 2026 at 02:22:08 PDT, seller added the following information: