U Type Groove Bearing Wheel Set 8x40x10 Mm Nylon Track Guide Roller Pulley With 8 Mm Bore And 40 Mm Diameter Low Friction Ball Raceway Precision Ground For Quiet Smooth Operation Durable Wheel For Motors, Robots, And 3D Printers Two Pack

U Type Groove Bearing Wheel Set 8x40x10 mm, two-pack
✔️ 8 mm bore, 40 mm dia, U groove, Delrin POM wheels 2pcs

This two-pack U Type Groove Bearing Wheel set uses Delrin POM to deliver smooth, quiet motion along nylon track guides. Each wheel is 8x40x10 mm with an 8 mm bore and 40 mm outer diameter, making it suitable for small motors, robots, and 3D printers.

✅ Pack: 2 pieces
✅ Wheel size: 8x40x10 mm with 8 mm bore
✅ Outer diameter: 40 mm; width: 10 mm
✅ Material: Delrin POM; U Type Groove design
✅ Bearing: 608Z (8x22x7 mm)

💡 What is a U Type groove bearing wheel used for in compact motion systems?

These wheels guide moving parts along a track with low friction. - Handy for small machines like hobbyist robots and 3D printers - Helps reduce noise and energy consumption with precision-ground raceways - Compatible with standard 8 mm bore setups for easy upgrades ✝️