
Heavy Duty Polyurethane Coated Roller Wheel. Made from modified PU elastomer, dramatically longer service life than nitrile / EPDM rubber rollers. Low hysteresis loss and low internal heat build-up; stable at 15 to 20 m/s continuous running, no "burning" even in long shifts. Proper Shore hardness + surface texture prevents scuffing or smudging on coated / kraft / corrugated board. Optional split-type with 4 pillar/peel-column teeth design grips paper firmly, solves aluminum-core slipping and sheet skew common with ordinary wheels. Any OD 50-400 mm (or larger), bore, keyway, hub (aluminum/steel) per your drawing; OEM for leading Chinese printing-machine makers (domestic penetration >80%). Factory-direct, 500k+ pcs annual output, 1-3 day dispatch for stock sizes.