PU Polyurethane Molded Ball Bearing Coated Bearings Pulley Guide Wheel ID 20mm
Housing Material: PU(Polyurethane). Thickness 12mm 15mm 20mm 24mm 25mm 36mm. Type: Deep Groove Ball Bearing. 03:Practical performance, the product has strong wear resistance, corrosion, high bearing, very good mute effect.