Ur Elk 3d Printer Pom Pulley Black Wheel 625zz Plastic Linear Bearing 3d Printer Parts
Material:3D printer wheels are made of durable POM wheels with full metal 625zz bearings.
benefit:This plastic pulley has low noise and smooth movement, which solves the swing problem and improves printing quality and speed.
feature:Precision center spacers between each plastic pulley and two bearings. If the shims are absent or too thin, the bearings will be damaged when pressure is applied during wheel installation.