4mm Bore Bearing - 15mm Round Nylon Pulley U-Groove Track Roller Bearing 4x15x6mm

BU0415 U-Groove Nylon Pulley Bearing
✔️ 4mm Bore with 15mm Round Nylon Wheel 4mm x 15mm x 6mm

This BU0415 U-groove track roller bearing features a 15mm round nylon pulley paired with a smooth-rolling steel ball bearing inside. It’s perfect for sliding doors, 3D printer beds, or small linear track systems where low noise and smooth glide matter.

✅ Inner diameter: 4mm
✅ Outer diameter: 15mm
✅ Width (tire width): 6mm
✅ U-groove design for guided motion along round rails
✅ Pulley material: White nylon
✅ Internal bearing: Steel deep groove ball bearing
✅ Lightweight and corrosion-resistant outer shell
✅ Pack size: 1 bearing

💡 Why use nylon U-groove pulley bearings in small motion systems?
They’re quiet, lightweight, and track-friendly.

• Glide smoothly over round rails or tension wires

• Nylon absorbs vibration and runs quietly

• Easy to install in compact guide or rail systems

• Great for 3D printers, small CNC setups, and cabinet sliders

Need smooth rolling in a compact rail system? This bearing’s got the grip and glide. Add one to your cart and keep your build moving clean and quiet.