--- product_id: 15385014 title: "47:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router" brand: "stepperonline" price: "€ 195.70" currency: EUR in_stock: true category: "Stepperonline" url: https://www.desertcart.fr/products/15385014-47-1-planetary-gearbox-nema-23-stepper-motor-2-8a store_origin: FR region: France --- # 0.039° ultra-fine step angle 40Nm holding torque 47:1 planetary gear ratio 47:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router **Brand:** stepperonline **Price:** € 195.70 **Availability:** ✅ In Stock ## Summary > ⚙️ Dominate your DIY CNC projects with precision and power! ## Quick Answers - **What is this?** 47:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router by stepperonline - **How much does it cost?** € 195.70 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/15385014-47-1-planetary-gearbox-nema-23-stepper-motor-2-8a) ## 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 1.7kg build with high axial and radial shaft load capacities ensures durability under pressure. - • **Gearbox Mastery:** 47:1 planetary gearbox delivers smooth, low-speed, high-torque performance with minimal backlash. - • **Compact Powerhouse:** NEMA 23 frame with a sleek 60x60mm footprint fits perfectly in your DIY CNC setup. - • **Torque That Commands:** 40Nm holding torque powers through the toughest milling, lathe, and routing tasks. - • **Precision at its Peak:** Achieve micro-step accuracy with a 0.039° step angle for flawless CNC control. ## Overview The STEPPERONLINE 47:1 Planetary Gearbox NEMA 23 Stepper Motor combines a high-precision 0.039° step angle with a powerful 40Nm holding torque, thanks to its integrated 47:1 planetary gearbox. Designed for demanding CNC milling, lathe, and routing applications, this compact yet robust motor offers smooth low-speed control and exceptional durability, making it the go-to choice for professional-grade DIY machining. ## Description This high precision NEMA 23 Stepper motor has an integrated Planetary gearbox with a 46.656:1 gear ratio, the resolution reach 0.039° 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-PG47 * Motor Type: Bipolar Stepper * Step Angle: 0.039° * Holding Torque: 40Nm * 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 : 46.656:1 * Efficiency: 73% * Backlash at No-load :<=1.5° * Max.Permissible Torque: 40Nm(2832oz-in) * Moment Permissible Torque: 60Nm(4248oz-in) * Shaft Maximum Axial Load: 100N * Shaft Maximum Radial Load : 200N Physical Specifications * Frame Size: 60 x 60mm * Motor Length: 56mm * Gearbox Length: 72mm * Shaft Diameter: Φ12mm * Shaft Length: 30mm * Key-way length: 20mm * Key-way width : 4mm * Number of Leads: 4 * Lead Length: 500mm * Weight : 1.7kg 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: 40Nm ,Rated Current/phase : 2.8A - Gearbox Type: Planetary - Frame Size: 60 x 60mm / 2.36x 2.36" , Motor Length: 56mm / 2.20" ,Gearbox Length :72mm / 2.83" - 4-wires (Black, Green, Blue, Red) , Weight: 1.7kg ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00WAV322U | | Best Sellers Rank | #621,124 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #663 in Electrical Motor Controls #1,247 in Edge Treatment & Grooving Router Bits | | Brand Name | STEPPERONLINE | | Customer Reviews | 4.7 4.7 out of 5 stars (13) | | Item Weight | 1.7 kg | | Manufacturer | OSM Technology Co.,Ltd. | | Material Type | lead | | Model | 23HS22-2804S-PG47 | | Model Name | gear | | Part Number | 23HS22-2804S-PG47 | | Shaft Diameter | 12 millimeters | | Speed | 2800 rpm | | UPC | 701056591893 | | Voltage | 48 volts | ## Product Details - **Brand:** STEPPERONLINE - **Material:** lead - **Model Name:** gear - **Speed:** 2800 rpm - **Voltage:** 48 volts ## Images ![47:1 Planetary Gearbox Nema 23 Stepper Motor 2.8A for DIY CNC Mill Lathe Router - Image 1](https://m.media-amazon.com/images/I/61l4blBF00L.jpg) ## Questions & Answers **Q: What is the maximum speed output of the gearbox?** A: The maximum speed output is about 25RPM. **Q: Is there a torque curve available for this motor?** A: Stepper motors definitely have torque curves. They are not constant torque. Planetary drives do not lock movement, they can be backdriven. Most likely the best torque performance will be had from this motor between 0 to 300 RPM. Other 2.8A motors I have (with published torque curves) produce about 100 oz. in. at 600 RPM. **Q: What types of voltage supplies would you apply to this motor? For example, a car battery.** A: 24Vdc is what i would recommend to keep the current down. ## Frequently Bought Together - STEPPERONLINE 47:1 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 --- ## 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.fr/products/15385014-47-1-planetary-gearbox-nema-23-stepper-motor-2-8a](https://www.desertcart.fr/products/15385014-47-1-planetary-gearbox-nema-23-stepper-motor-2-8a) --- *Product available on Desertcart France* *Store origin: FR* *Last updated: 2026-09-30*