[10 pcs] 3D Printer Models V-slot Pulley POM Plastic Pulley Models Ball Bearings V Bearing Passive Pulley Rolling Wheels

★ The plastic roller bearing is a passive round pulley with a V-slot design for 3D printers. ★ This V-slot design is widely used for aligning wheels, wire, and belts. ★ The outer part of the wheel is made of POM material with good physical, mechanical, and chemical properties. ★ This roller has an outer diameter of 25 mm, a thickness of 11 mm, and a bore of 5 mm. ★ These pulley bearings have motor ball bearings, are rust-resistant, wear-resistant, have excellent friction resistance, and operate smoothly.