Yoidesu 10 Pcs U Groove Pulley Rail Ball Bearing U604ZZ 3D Printer Extruder Metal U-Groove Guide Wheel 4 13 4mm

The U-Groove Wheel Pulley Bearing is a premium quality replacement part for 3D printers, designed to provide smooth, low noise operation and high precision performance.

Made of durable metal material, this bearing is wearable, long lasting, and great for replacing broken parts.

With a total of 10 pieces in one pack, you'll have plenty of spares on hand to keep your printer running at its best.

Don't settle for subpar bearings that can damage your printer or cause problems - choose the U-Groove Wheel Pulley Bearing and experience the difference for yourself!