---
product_id: 109053932
title: "STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics"
brand: "stepperonline"
price: "¥5935"
currency: JPY
in_stock: false
url: https://www.desertcart.jp/products/109053932-stepperonline-15-1-planetary-gearbox-nema-23-gear-stepper-motor
store_origin: JP
region: Japan
---

# Compact 56mm motor length Precision 15:1 planetary gearbox 15.5Nm holding torque STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Gear Stepper Motor Bipolar L=56mm for DIY CNC Robotics

**Brand:** stepperonline
**Price:** ¥5935
**Availability:** ❌ Out of Stock

## Summary

> ⚙️ Power your projects with precision and compact strength!

## 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?** ¥5935 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/109053932-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

- • **Built to Last:** Robust 1.5kg frame crafted for durability and consistent heavy-duty operation.
- • **Compact Yet Mighty:** Sleek 56mm motor length fits tight spaces without compromising performance.
- • **Plug & Play Wiring:** 4-color coded wires simplify installation and integration into your DIY builds.
- • **Unmatched Torque Power:** 15.5Nm holding torque delivers rock-solid precision for your CNC and robotics projects.
- • **Precision Planetary Gearbox:** 15:1 ratio ensures smooth, high-accuracy motion control every time.

## Overview

The STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Stepper Motor combines a powerful 15.5Nm holding torque with a compact 56mm motor length and a precision 15:1 planetary gearbox. Designed for DIY CNC and robotics, it features easy 4-wire bipolar wiring and a durable 1.5kg frame, delivering reliable, high-accuracy motion control for professional-grade builds.

## 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.

## 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 |
|---------------|-------|
| Manufacturer | OSM Technology Co.,Ltd. |
| Part number | 23HS22-2804S-PG15 |
| Item Weight | 1.5 kg |
| Product Dimensions | 5.99 x 5.99 x 5.59 cm; 1.5 kg |
| Item model number | 23HS22-2804S-PG15 |
| Size | Nema23 |
| Material | lead |
| Voltage | 48 Volts |
| Horsepower | 0.9 Kilowatts |
| Item Package Quantity | 1 |
| Specification met | Nema |
| Batteries included? | No |
| Batteries Required? | No |

## Product Details

- **Brand:** STEPPERONLINE
- **Model name:** gear
- **Voltage:** 48 Volts
- **Horsepower:** 0.9 Kilowatts
- **Material:** lead

## 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/61jrlaix6LL.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/61183lQ5igL.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/51kXP19LstL.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/31DXPGfP9vL.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/61FblDhqtOL.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.

## Frequently Bought Together

- STEPPERONLINE 15:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router
- STEPPERONLINE NEMA 23 Stepper Motor (Economy Geared Stepper Motor) Alloy Steel Mounting Bracket ST-M2
- STEPPERONLINE CNC Stepper Motor Driver 1.0-4.2A 20-50VDC 1/128 Micro-Step Resolutions for Nema 17 and 23 Stepper Motor

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.jp/products/109053932-stepperonline-15-1-planetary-gearbox-nema-23-gear-stepper-motor](https://www.desertcart.jp/products/109053932-stepperonline-15-1-planetary-gearbox-nema-23-gear-stepper-motor)

---

*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*