---
product_id: 17335618
title: "STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router"
brand: "stepperonline"
price: "139524CFA"
currency: XOF
in_stock: true
reviews_count: 7
url: https://www.desertcart.sn/products/17335618-stepperonline-15-1-planetary-gearbox-nema-23-stepper-motor-2
store_origin: SN
region: Senegal
---

# 30Nm max torque capacity 0.12° ultra-fine step angle 15.3:1 planetary gear ratio STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router

**Brand:** stepperonline
**Price:** 139524CFA
**Availability:** ✅ In Stock

## Summary

> ⚙️ Gear up your CNC game with precision and power that won’t quit!

## Quick Answers

- **What is this?** STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router by stepperonline
- **How much does it cost?** 139524CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/17335618-stepperonline-15-1-planetary-gearbox-nema-23-stepper-motor-2)

## 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 Powerhouse:** NEMA 23 frame with a sleek 60x60mm footprint and integrated gearbox keeps your workspace clean and efficient.
- • **Built for Longevity:** Planetary gearbox with 81% efficiency and minimal backlash (≤1.5°) ensures consistent, reliable performance over time.
- • **Torque That Commands:** Unleash up to 30Nm of max permissible torque—power through the toughest milling, routing, and lathe tasks effortlessly.
- • **Precision at its Peak:** Experience ultra-smooth motion with a razor-sharp 0.12° step angle for CNC projects that demand perfection.
- • **Plug & Play Confidence:** 4-wire bipolar stepper design compatible with constant current or chopper drives—engineered for seamless integration.

## Overview

The STEPPERONLINE 15:1 Planetary Gearbox NEMA 23 Stepper Motor delivers ultra-precise 0.12° step resolution combined with a robust 15.3:1 planetary gear ratio, enabling high torque output up to 30Nm. Designed for demanding DIY CNC mills, lathes, and routers, this compact 60x60mm motor integrates a bipolar stepper with 2.8A rated current, ensuring smooth, reliable motion control with minimal backlash and high efficiency.

## 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 without Gearbox: 1.25Nm(177.01oz.in) * 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.

## Features

- Bipolar Stepper, Holding Torque without Gearbox: 1.25Nm, 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 |
|---------------|-------|
| Brand | STEPPERONLINE |
| Model Name | gear |
| Speed | 12000 RPM |
| Voltage | 48 Volts |
| Horsepower | 0.9 Kilowatts |
| Material | lead |
| Item Weight | 3.3 Pounds |
| Shaft Diameter | 4 Millimeters |
| Manufacturer | OSM Technology Co.,Ltd. |
| UPC | 701056574841 |
| Part Number | 23HS22-2804S-PG15 |
| Item Weight | 3.31 pounds |
| Product Dimensions | 2.36 x 2.36 x 2.2 inches |
| Item model number | 23HS22-2804S-PG15 |
| Is Discontinued By Manufacturer | No |
| Size | Nema23 |
| Item Package Quantity | 1 |
| Certification | Nema |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** STEPPERONLINE
- **Model Name:** gear
- **Speed:** 12000 RPM
- **Voltage:** 48 Volts
- **Horsepower:** 0.9 Kilowatts

## Images

![STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router - Image 1](https://m.media-amazon.com/images/I/61jrlaix6LL.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

### ⭐⭐⭐⭐⭐ Decent little geared stepper motor.  I like the quality and it was nicely packed.
*by A***R on April 22, 2025*

Nice quality, I will order more.

### ⭐⭐⭐⭐⭐ Very strong motor
*by T***T on July 6, 2024*

We are running this on a dm556t driver from stepper online. 24 volts in and lots of torque coming out. Driver set to 4.2 amps. This rotates a crane that lifts a wheelchair in and out of a pickup truck. It is strong!

### ⭐⭐⭐⭐ good price
*by C***L on December 5, 2017*

I am happy to find this product at a good price

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**Shop now:** [https://www.desertcart.sn/products/17335618-stepperonline-15-1-planetary-gearbox-nema-23-stepper-motor-2](https://www.desertcart.sn/products/17335618-stepperonline-15-1-planetary-gearbox-nema-23-stepper-motor-2)

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-03-04*