Protomont Plastic Wheel with Bearing Idler Pulley(Pack of 4)

D-type pulleys are produced by high-precision automatic lathe machining, with machining error within 0.005mm. The bearings we use are high quality 625ZZ Bearings. The features and advantages include: Smooth motion, low noise, high printing precision, can greatly improve the printing speed.

Package Included: 4 Pcs: Plastic Wheels with Bearing.