The High Performance Komatsu PC55 Excavator Sprocket is a precision-engineered drive component designed specifically for Komatsu’s 5.5-ton compact excavator series, including the PC55, PC55MR-2, PC55MR-3, and PC55MR-5 models. As the critical power transmission element of the undercarriage system, the sprocket (also known as drive sprocket or track sprocket) engages directly with the track chain or rubber track to transfer torque from the travel motor, propelling the excavator forward and backward across construction sites, landscaping projects, and utility work.

Manufactured from high-grade alloy steel through precision casting and CNC machining processes, this sprocket delivers exceptional structural integrity and wear resistance. The sprocket teeth undergo full-surface induction hardening and heat treatment, achieving a surface hardness that ensures long-lasting engagement with the track under heavy load conditions. The precision-machined tooth profile is precisely matched to the track pitch for smooth, efficient power transmission.

Engineered for the Komatsu PC55 series—featuring an operating weight of approximately 5.26-5.28 tons, engine power of 29.1 kW (39 HP), and a 400mm track width—this sprocket guarantees OEM-spec fitment and dependable performance. The sprocket features a 19-tooth design with 9 mounting holes and an internal diameter of 230mm, ensuring secure, stable installation. An anti-corrosion protective coating provides rust resistance in wet or abrasive environments.