KOMATSU 56B-20-11900 OE Part Manufacturers in India

PTC 2228 is a cross-reference OEM part to Komatsu 56B-20-11900 that transmits engine-side coupling to the front axle on articulated dump trucks utilised in mining and quarry work. This is the longest portion of the driveline in the system, and the initial torque load is applied here before being distributed downstream; therefore, the tube is produced in high-tensile alloy steel comparable to the wall thickness in OEM to sustain a constant load without deflection. The machined yoke ends have close spline and flange tolerances, ensuring that engine-to-axle alignment remains constant amid repeated acceleration cycles.

All shafts are dynamically balanced in the factory to ensure that vibration is kept at a reasonable level at this high-stress near-engine location, eliminating stress transfer to the engine flywheel housing and front axle input seals. PTC 2228 is developed to minimise relying on regular manual greasing between service cycles when working with sealed and self-lubricated joints in the spider. This driveshaft is the result of an ISO 9001:2015 quality-controlled production process and dimensional verification to Komatsu HM400-2R, providing a direct replacement alternative to the engine-to-front-axle drive portion.