1 Solid roller cold forged for highest precision. Through-hardened and shot-peened for higher fatigue resistance.
2 Bushing made by cold forging or precision curling, case hardened and ground for high wear resistance
3 Alloy steel pins hardened and polished. Highly fatigue and wear resistant.
4 Wide waist link plate, calibrated holes heat-treated and shot-peened for higher fatigue resistance.
Italian version
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