---
product_id: 387687809
title: "STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics"
brand: "stepperonline"
price: "1319 zł"
currency: PLN
in_stock: false
reviews_count: 5
category: "Stepperonline"
url: https://www.desertcart.pl/products/387687809-stepperonline-15-1-planetary-gearbox-nema-23-gear-stepper-motor
store_origin: PL
region: Poland
---

# 15.5Nm holding torque 0.12° ultra-fine step angle 15.3:1 planetary gear ratio STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics

**Brand:** stepperonline
**Price:** 1319 zł
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Power your projects with precision and torque that won’t quit!

## Quick Answers

- **What is this?** STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics by stepperonline
- **How much does it cost?** 1319 zł with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/387687809-stepperonline-15-1-planetary-gearbox-nema-23-gear-stepper-motor)

## Best For

- stepperonline enthusiasts

## Why This Product

- Trusted stepperonline brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Yet Mighty:** NEMA 23 frame with a sleek 56mm motor length fits perfectly in tight, high-performance setups.
- • **Torque That Commands:** Unleash 15.5Nm holding torque—built to handle the toughest DIY projects without breaking a sweat.
- • **Precision Meets Power:** Experience ultra-smooth motion with a razor-sharp 0.12° step angle for CNC and robotics mastery.
- • **Plug & Play Confidence:** 4-wire bipolar design ensures seamless integration with your chopper drive controller for flawless operation.
- • **Planetary Gearbox Efficiency:** 15.3:1 gear ratio delivers low-speed control and up to 81% efficiency—engineered for reliability and endurance.

## Overview

The STEPPERONLINE NEMA 23 Stepper Motor with integrated 15.3:1 planetary gearbox offers a high holding torque of 15.5Nm and an ultra-fine 0.12° step angle. Compact and efficient, it’s engineered for demanding CNC and robotics applications requiring precise low-speed control and robust performance.

## Description

This high precision NEMA 23 Stepper motor has an integrated Planetary gearbox with a 15.3:1 gear ratio, the resolution reach 0.12° step angle. It's a good solution in applications that need very low rotation speeds and/or lots of torque. Electrical Specification * Manufacturer Part Number: 23HS22-2804S-PG15 * Motor Type: Bipolar Stepper * Step Angle: 0.12° * Holding Torque: 15.5Nm * Rated Current/phase: 2.8A * Phase Resistance: 0.9ohms * Recommended Voltage: 24-48V * Inductance : 2.5mH±20%(1KHz) Gearbox Specifications * Gearbox Type: Planetary * Gear Ratio : 15.3 * Efficiency: 81% * Backlash at No-load : <=1.5° * Max.Permissible Torque: 30Nm(4248oz-in) * Moment Permissible Torque: 50Nm(7080oz-in) * Shaft Maximum Axial Load: 100N * Shaft Maximum Radial Load : 200N Physical Specifications * Frame Size: 60 x 60mm * Motor Length: 56mm * Gearbox Length: 60mm * Shaft Diameter: Φ12mm * Shaft Length: 30mm * Key-way length: 20mm * Key-way width : 4mm * Number of Leads: 4 * Lead Length: 500mm * Weight : 1.5kg Connection: Black(A+), Green(A-), Red(B+), Blue(B-) Warning: Make sure the motor connect to a constant current or chopper drive controller before you test motor. Connecting the motor directly to a power supply will destroy the motor.

Review: Purchased this to modify an ARTME3D extruder for higher reliabiltiy as opposed to the 3D printed gearbox. Works perfect, and is the exact product used in the official MK3S+ kit.
Review: Nice quality, I will order more.

## Features

- Bipolar Stepper, Holding Torque: 15.5Nm , Rated Current/phase : 2.8A
- Gearbox Type: Planetary
- Frame Size: 60 x 60 mm / 2.36 x 2.36" , Motor Length: 56 mm / 2.20" , Gearbox Length :60 mm / 2.36"
- 4-wires (Black, Green, Blue, Red) , Weight: 1.5kg

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00WAV0N5E |
| Item model number | 23HS22-2804S-PG15 |
| Manufacturer | OSM Technology Co.,Ltd. |
| Product Dimensions | 5.99 x 5.99 x 5.59 cm; 1.5 kg |

## Product Details

- **Brand:** STEPPERONLINE
- **Horsepower:** 0.9 Kilowatts
- **Item weight:** 1.5 kg
- **Material:** lead
- **Voltage:** 48 Volts

## Images

![STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics - Image 1](https://m.media-amazon.com/images/I/31DXPGfP9vL.jpg)
![STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics - Image 2](https://m.media-amazon.com/images/I/410cb2xpYcL.jpg)
![STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics - Image 3](https://m.media-amazon.com/images/I/414HGx+ICXL.jpg)
![STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics - Image 4](https://m.media-amazon.com/images/I/417D+b7Aj3L.jpg)
![STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics - Image 5](https://m.media-amazon.com/images/I/41lrtrD6iCL.jpg)

## Questions & Answers

**Q: What is the gearbox diameter?**
A: This is driven by a NEMA size 23 step motor which is roughly 2.3 inches square.  Therefor  the diameter of the gearbox is also roughly 2.3 inches.

**Q: What is the holding torque with the gear? only specifications it gives one without the gear.**
A: Tricky question since torque is rotational force, holding torque of the motor refers to max continuous amps... Depending on your driving circuit if you're looking for breaking current you need a decent heatsink... Long story short depends on what your application is.

**Q: I can’t turn the shaft by hand and it won’t turn attached to driver.  Does this ship locked in any way?  The wires aren’t shorted.  Why is it locked u**
A: There is quite a gear reduction. Back driving isn't going to be done easily. If you want to turn it I suggest you use the motor so you don't damage the planetary gears.

**Q: can i use a different stepper?**
A: Tried it on one I bought a year ago and could not.  There’s a gear that was pressed onto the shaft of the stepper I think.  The gear box did not just slide off leaving a regular stepper behind.  We had to find a stepper and a separate gearbox.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by B***Y on 8 November 2025*

Purchased this to modify an ARTME3D extruder for higher reliabiltiy as opposed to the 3D printed gearbox. Works perfect, and is the exact product used in the official MK3S+ kit.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 22 April 2025*

Nice quality, I will order more.

### ⭐⭐⭐⭐ Review
*by C***L on 5 December 2017*

I am happy to find this product at a good price

## Frequently Bought Together

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-22*