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Openbuilds Idler Passive Wheel Pulley for 3D printers
The Openbuilds Idler Passive Wheel Pulley for 3D printers is a value-for-money other 3d printer accessories designed for everyday users. It features Item Type: Idler Passive Wheel Pulley and Material: Delrin Plastic (POM).
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About This Product
The Openbuilds Idler Passive Wheel Pulley for 3D printers is a value-for-money other 3d printer accessories designed for everyday users. It delivers reliable performance at an accessible price.
Key Specifications
- Item Type: Idler Passive Wheel Pulley
- Material: Delrin Plastic (POM) — built to last with a quality finish
- Color: Black
- Suitable For: CNC Machines, 3D Printers
- Construction: Solid Plastic Wheel
- Length (mm): 12.7
- Bore Diameter [B] (mm): 5
- Outer Diameter (mm): 22
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The OpenBuilds Idler Passive Wheel Pulley is engineered for reliable belt redirection in precision motion assemblies. Manufactured from high-quality Delrin (POM) plastic, it offers excellent wear resistance, smooth rotation, and reduced friction during continuous operation. Featuring a precise 5mm bore, this idler wheel is designed to be used with the OpenBuilds 625 2RS ball bearing (5×16×5mm), ensuring stable and consistent belt movement.
As a passive pulley, it does not drive motion but plays a critical role in maintaining belt tension and alignment. Commonly used in CNC machines, 3D printers, automation systems, and DIY projects, it helps improve motion accuracy and belt life. The black finish integrates seamlessly with OpenBuilds hardware for a clean, professional build.
Features:
- The pulley is made from Delrin (POM) material, offering low friction and high durability.
- Its passive idler design helps maintain proper belt alignment during operation.
- The wheel supports smooth rotation, enabling quiet and stable motion.
- A precision 5 mm bore ensures accurate fitting with compatible hardware.
- It is designed to work seamlessly with a 625 2RS ball bearing.
- The pulley is fully OpenBuilds compatible and ideal for V-slot systems.
- Its wear-resistant construction ensures a long and reliable service life.
- The black finish provides a clean and professional appearance.





