8-97178013-0 BOLT FLYWHEEL For ISUZU ZX200-3 4HK1

The Flywheel bolt on the flywheel are usually made of high-strength alloy steel, which can bear the load of high torque and ensure the stability and reliability of the energy transmitted between the engine and the gearbox. The bolt surface will also be treated with anti-corrosion to prevent corrosion and oxidation after long-term use. The bolt consists of a screw head, a screw body and a screw tail end, wherein the screw head is used for connecting the flywheel, the screw body is responsible for bearing the load, and the screw tail end is used for connecting the nut. The design of screw head is helpful to reduce the jump and vibration between teeth during connection.

Flywheel bolts are usually composed of hexagon head, thread, conical seat, washer and fixing nut. Flywheel bolt is a bolt connecting the crankshaft and flywheel disc of the engine, which transmits power to the gearbox by fastening the flywheel disc and crankshaft. Among them, the function of the conical seat is to evenly transfer the fastening force to each screw hole of the flywheel disc and play a role in fixing the flywheel disc. The washer plays the role of dispersing pressure to avoid looseness between the bolt and the flywheel disc.

The main function of the flywheel bolt is to generate enough pre-tightening force during assembly, so that the friction torque generated between the flywheel and the crankshaft can transmit torque when the engine is working, ensuring the firm combination of the flywheel and the crankshaft, thus ensuring the normal operation of the engine. The main functions of bolted flywheel include fixing flywheel group and crankshaft, stabilizing engine speed, reducing engine noise, storing energy and stabilizing engine speed, driving wheels and starting the engine. Flywheel bolts are mainly subjected to tensile force and shear force in work, and bear a large load, so they must have good strength, toughness and fatigue resistance.