13mm Square Drive Shaft with 12mm Diameter Shaft

**Somfy 13mm Square Drive Shaft with 12mm Diameter Shaft – Product Description**  

The **Somfy 13mm Square Drive Shaft with 12mm Diameter Shaft** is a **precision adapter** designed to connect **12mm round shafts** to **13mm square drive systems**, enabling seamless integration of motors and roller shades in commercial and heavy-duty applications.  

### **Key Features:**  

- **Dual-Function Design:**  

 - **12mm round shaft** on one end  

 - **13mm square drive** on the other  

- **Heavy-Duty Construction:**  

 - **Hardened steel** for maximum durability  

 - **Corrosion-resistant coating**  

- **Universal Compatibility:**  

 - Bridges **12mm round idler systems** with **13mm square drive motors**  

 - Works with **most commercial roller shade tubes**  

- **Smooth Operation:**  

 - **Precision-machined fit** minimizes play  

 - **Reduces vibration** for quiet performance  

- **Easy Installation:**  

 - **Tool-free** push-on design  

 - **Prevents shaft slippage**  

### **Technical Specifications:**  

- **Material:** Grade 8.8 carbon steel  

- **Shaft Diameters:**  

 - Round end: 12mm (±0.02mm)  

 - Square end: 13mm (±0.05mm)  

- **Length:** 40mm  

- **Load Capacity:** 25kg dynamic / 35kg static  

- **Temperature Range:** -40°F to 250°F (-40°C to 121°C)  

### **Ideal For:**  

✔ **Commercial motorized shade retrofits**  

✔ **High-torque applications**  

✔ **Systems requiring shaft conversion**  

### **Package Includes:**  

- (1) 13mm square/12mm round drive shaft  

- Installation guide  

**Note:** Verify shaft dimensions before installation.  

**Upgrade your system with Somfy’s precision shaft adapter for flawless motor integration!**  

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*For outdoor use: Apply anti-corrosion treatment annually.*  

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generate a list of technical specifications for the following product:  Somfy 13 mm Square Drive Shaft with 12 mm Diameter Shaft  

### **Somfy 13mm Square Drive Shaft with 12mm Diameter Shaft – Technical Specifications**  

#### **General Specifications**  

- **Product Type:** Shaft adapter  

- **Function:** Converts 12mm round to 13mm square drive  

- **Material:** Grade 8.8 carbon steel  

- **Surface Treatment:** Zinc-nickel plating  

- **Weight:** 85g  

#### **Dimensional Specifications**  

- **Total Length:** 40mm  

- **Round Shaft End:**  

 - Diameter: 12mm (h6 tolerance)  

 - Length: 20mm  

- **Square Drive End:**  

 - Size: 13mm × 13mm (±0.05mm)  

 - Length: 20mm  

#### **Mechanical Performance**  

- **Torque Capacity:** 15Nm  

- **Load Ratings:**  

 - Dynamic: 25kg  

 - Static: 35kg  

- **Runout Tolerance:** <0.1mm TIR  

#### **Material Properties**  

- **Hardness:** 32-38 HRC  

- **Tensile Strength:** 800MPa  

- **Corrosion Resistance:** 1000hr salt spray (ASTM B117)  

#### **Installation Specifications**  

- **Press Fit:**  

 - Round end: 0.02-0.05mm interference  

 - Square end: 0.01-0.03mm clearance  

- **Installation Force:** 50-100N  

#### **Environmental Ratings**  

- **Temperature Range:** -40°C to +120°C  

- **IP Rating:** IP54 (when properly installed)  

#### **Certifications**  

- **Standards:** ISO 898-1, RoHS  

- **Warranty:** 5-year limited  

#### **Included Components**  

- (1) Drive shaft  

- Installation guide  

**Maintenance Notes:**  

- Inspect annually for:  

 - Visible wear >0.2mm  

 - Corrosion spots  

- Do not lubricate  

**Professional-grade shaft adapter for commercial shade systems.**  

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*Note: For optimal performance, ensure both shaft ends are clean and undamaged before installation.*