Nema 23 Planetary Gearbox Gear Head 57 Motor Reducer 1/4 inch 6.35mm 8mm Input

 

Package List:

1x Planetary Gearbox

 1x Key

 4x Install screw

1*axle sleeveIf your device requires an input hole of 6.35mm, installing a shaft sleeve will reduce the 8mm to 6.35mm

 

 

if you want other speed ratio,you could click on the picture below to purchase:

 

Product feature:

✅High Precision with Multiple Speed Ratios
The planetary gearbox offers a wide range of speed ratios, including 1-stage (4:1 to 10:1) and 2-stage (20:1 to 100:1), catering to various application needs. Designed for high precision, the 1-stage gearbox has a backlash of ≤20 Arcmin, while the 2-stage gearbox has a backlash of ≤40 Arcmin, ensuring smooth and accurate operation.

Powerful Output Torque
With a rated output torque of up to 33Nm, this gearbox is ideal for high-load applications. Different speed ratios correspond to different torque outputs (8Nm to 33Nm), making it versatile and reliable for a wide range of industrial tasks.

High Efficiency and Durable Design
The 1-stage gearbox achieves a full-load efficiency of ≥95%, and the 2-stage gearbox reaches ≥90%, ensuring optimal energy conversion. Its compact body length (L1=66mm, L2=81mm) makes it suitable for space-constrained applications, while its high radial load capacity (320N) and axial load capacity (240N) ensure durability.

Wide Applicability and High-Speed Performance
With a maximum input speed of 4000rpm and a rated input speed of 3000rpm, this gearbox is perfect for high-speed operations. It is widely used in automation equipment, robotic arms, conveyor systems, packaging machinery, and more, delivering reliable and stable performance.

Premium Materials and Industrial-Grade Standards
Constructed with high-strength materials, this gearbox ensures long-lasting durability. The 14mm output shaft offers excellent compatibility, making it easy to install and integrate into various equipment. It is an ideal choice for industrial automation applications.

 

 

 

 

 Drawings

 

Product parameter

Speed Ratio:

1Stage (L1):  4:1 / 5:1 / 7:1 / 10:1  

2Stage (L2):  16:1 / 20:1 / 25:1 / 35:1 / 40:1 / 50:1 / 70:1/1001

Output Shaft: 14mm  

Rated output torque:

8Nm (10:1) ;19Nm (7:1) ;27Nm (4:1) ;29Nm (5:1) ;

30Nm (16:1 / 20:1 / 40:1);

33Nm ( 25:1 / 35:1 / 50:1)

Body length: L1=66mm, L2=81mm

Full load efficiency: L1 95%, L2 90%

Max radial force: 320N

Max axial force : 240N

Max input speed: 4000rpm   

Rated input speed: 3000rpm  

Backlash Precision: L1 20 Arcmin ,  L2 40 Arcmin  

 

if this model can't meet your requirements,maybe you could click on the picture below to view our other model:

Detail Shows

 

 

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On Oct 14, 2025 at 01:44:58 PDT, seller added the following information:

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