GT2 Pulley 20 Teeth 5mm Bore - Aluminum Timing Pulley
GT2 Pulley 20 Teeth 5mm Bore - Aluminum Timing Pulley for Precision Motion
The GT2 Pulley is a precision timing pulley designed for GT2 2mm pitch belts. Commonly used in 3D printers and CNC machines, it provides accurate motion control when paired with stepper motors. This aluminum pulley features 20 teeth and a 5mm bore, ideal for NEMA 17 motor shafts.
Key Specifications
| Specification | Value |
|---|---|
| Material | Aluminum alloy |
| Tooth Profile | GT2 (2mm pitch) |
| Number of Teeth | 20 |
| Bore Diameter | 5mm |
| Belt Width | 6mm |
| Flange | Double flange |
What You Can Build With This
- 3D printer axis drive system
- CNC router linear motion
- Robotics arm joint actuation
- Automatic belt-driven camera slider
Compatibility
This pulley fits NEMA 17 stepper motors with 5mm diameter shafts, commonly found in 3D printers like the Ender 3 and Prusa i3. It pairs with standard 6mm wide GT2 timing belts. Compatible with control boards such as RAMPS 1.4, SKR, and Arduino-based setups.
Wiring Notes
No electrical connections are required. Secure the pulley onto the motor shaft using the two included M3 set screws, ensuring it aligns with the belt path to minimize wear. Avoid overtightening, which may strip the threads or bend the shaft.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Ender 3 3D printers?
Yes, this 20-tooth GT2 pulley with a 5mm bore fits the standard NEMA 17 motors on the Ender 3 and similar printers.
What is the recommended belt tension?
For optimal performance, adjust the belt so that it deflects about 2-3 mm when pressed with moderate force. Over-tensioning can cause motor skipping.
Does this pulley come with set screws?
Yes, two M3 set screws are included for secure mounting to the motor shaft.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items