- ADDRESS：Jinan City, Shandong Province
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
The 46370145A Engine Flywheel Rollers are precision-engineered, high-capacity pilot bearings designed for the flywheel and transmission input shaft interface in SINOTRUK Howo heavy-duty trucks. As a trusted supplier of genuine Sinotruk howo parts, we offer this OEM-grade flywheel roller bearing set as a direct replacement for the original factory components. The 46370145A pilot bearings provide smooth, low-friction support for the transmission input shaft, ensuring proper alignment, reducing vibration, and enabling reliable clutch engagement and disengagement. Manufactured from high-quality bearing steel with precision-ground rollers and a durable cage, these flywheel rollers deliver exceptional load capacity, wear resistance, and long-term durability under the extreme torque and RPM conditions of heavy-duty trucking.
The 46370145A engine flywheel rollers are a critical component for maintaining driveline integrity and smooth shifting performance. Worn or damaged pilot bearings can cause input shaft misalignment, clutch chatter, and transmission damage. This genuine OEM roller set restores proper bearing support and ensures your HOWO truck shifts smoothly and reliably.
OEM direct replacement • Precision-ground rollers • High-capacity bearing steel • Low-friction operation • Extended service life
The 46370145A is a set of precision engine flywheel rollers (pilot bearings) designed for the flywheel and transmission input shaft interface in SINOTRUK Howo A7, T7H, and other heavy-duty truck models. These rollers are installed in the center of the flywheel, providing a low-friction support surface for the transmission input shaft pilot. Its OEM-grade construction replicates the original rollers’ dimensions, material composition, and load ratings, ensuring a perfect fit and reliable performance.
The flywheel rollers are manufactured from high-quality bearing steel with precision-ground surfaces for minimal friction and maximum wear resistance. The rollers are held in a durable cage that ensures even load distribution and proper spacing, preventing roller skewing and ensuring smooth rotation. This design provides exceptional radial and axial load capacity, supporting the transmission input shaft and maintaining proper alignment between the engine and transmission.
The 46370145A rollers are engineered to withstand the high temperatures, extreme RPMs, and continuous operation typical of heavy-duty trucking. Their precision-ground surfaces and optimized geometry reduce friction and wear, ensuring long service life and consistent performance. The rollers are also treated with a corrosion-resistant coating to protect against moisture and contamination.
Common symptoms of failing flywheel rollers include clutch chatter, difficulty shifting gears, vibration during clutch engagement, and visible wear on the input shaft pilot. Replacing worn rollers with the 46370145A restores smooth clutch operation and protects the transmission from costly damage.
Whether you’re performing a clutch replacement, transmission overhaul, or engine rebuild, the 46370145A Engine Flywheel Rollers offer the quality, precision, and durability that SINOTRUK Howo professionals demand.
The 46370145A engine flywheel rollers are specifically designed for SINOTRUK Howo A7 and T7H series trucks, as well as other heavy-duty models equipped with WD615, D10, D12, and MC series diesel engines. This pilot bearing set serves as a direct replacement for the original factory rollers and is compatible with all flywheels that use this specific roller configuration.
These flywheel rollers are essential for applications involving frequent clutch engagement, heavy loads, and demanding operating conditions, such as long-haul transport, construction, mining, and heavy hauling. In these environments, the pilot bearing is subjected to high loads, extreme temperatures, and continuous rotation. The 46370145A is engineered to withstand these harsh conditions, providing consistent input shaft support and smooth clutch operation.
When replacing flywheel rollers, it is important to inspect the flywheel bore and the transmission input shaft pilot for wear or damage. The 46370145A is designed to work with the factory flywheel and input shaft, ensuring proper fit and alignment. It is compatible with both single-plate and dual-plate clutch configurations.
For fleets with multiple HOWO trucks, this roller set standardizes clutch and transmission repairs, simplifying parts inventory and ensuring the correct component is available for scheduled maintenance or clutch replacements. Always verify the flywheel bore diameter and roller count on your specific truck to confirm compatibility, though the 46370145A is the standard flywheel roller set for the majority of A7 and T7H applications.
Replacing the 46370145A engine flywheel rollers is a moderately complex procedure that requires mechanical expertise and the proper tools. This work should be performed with the transmission removed and the flywheel accessible. Begin by safely securing the vehicle and supporting the engine and transmission as needed.
Remove the transmission and clutch assembly to access the flywheel. Remove the flywheel from the engine crankshaft and place it on a clean work surface. Locate the pilot bearing in the center of the flywheel and carefully remove the old rollers using a suitable puller or press, taking care not to damage the flywheel bore. Clean the flywheel bore thoroughly with a solvent and lint-free cloth to remove any debris, old grease, or contaminants.
Inspect the flywheel bore for wear, scoring, or damage – if the bore is damaged, it must be repaired or the flywheel replaced before installing new rollers. Apply a thin coat of high-temperature grease to the new 46370145A rollers and carefully install them into the flywheel bore, ensuring they are evenly spaced and fully seated. Install the cage (if separate) to retain the rollers in position.
Reinstall the flywheel, torqueing the bolts to the manufacturer’s specified value. Reinstall the clutch assembly and transmission, following the service manual procedures. Refill the transmission with the recommended fluid. Start the engine and check for smooth clutch operation and any unusual noises.
For maintenance, the pilot bearing should be inspected whenever the clutch is replaced. The 46370145A is designed for long service life, but regular inspection is essential to prevent premature wear and potential transmission damage. If you notice clutch chatter, difficulty shifting, or unusual vibration, inspect the flywheel rollers promptly.
The 46370145A engine flywheel rollers are manufactured in an ISO 9001-certified facility using advanced precision grinding and assembly processes. The bearing steel is sourced from certified mills and undergoes rigorous chemical analysis and purity testing to ensure it meets the highest standards for strength and durability.
Every roller undergoes comprehensive quality checks, including dimensional verification, surface finish inspection, and hardness testing. The rollers are inspected for roundness and surface defects. The cage is inspected for proper fit and alignment. Random samples from each batch are subjected to load testing and durability testing to confirm long-term reliability.
We back the 46370145A with a comprehensive 12-month warranty against material and workmanship defects. Our rigorous quality control ensures that every roller set delivers the same fit, performance, and durability as the original factory components, giving you confidence in your driveline integrity.
Choose genuine quality for your clutch and transmission repair – choose the 46370145A Engine Flywheel Rollers.
The 46370145A Engine Flywheel Rollers are a critical component that directly affects clutch operation, shifting smoothness, and transmission reliability. Worn or damaged pilot bearings can cause input shaft misalignment, clutch chatter, and eventual transmission failure. By replacing a worn roller set with this genuine OEM-grade component, you restore proper input shaft support and protect the transmission from costly damage.
The 46370145A is manufactured from premium bearing steel with precision-ground surfaces and a durable cage, delivering the load capacity and wear resistance required for reliable clutch and transmission operation. Its precision-engineered fit ensures smooth input shaft rotation and proper alignment. This translates to smooth clutch engagement, reduced vibration, and extended transmission life.
Fleet operators will benefit from reduced clutch and transmission failures, fewer unscheduled breakdowns, and lower overall maintenance costs. Owner-operators will have peace of mind knowing their driveline is supported by a component that meets OEM specifications and is backed by a comprehensive warranty.
Invest in the 46370145A Engine Flywheel Rollers and ensure your SINOTRUK Howo’s clutch and transmission operate smoothly, reliably, and ready for the demands of the road.
Order your 46370145A today and keep your HOWO truck’s driveline smooth, reliable, and ready for any driving condition.
We are a first-class heavy duty vehicles and spare parts supplier in China. which covers from engine, gearbox, cab, axle assemblies to main assembly accessories, electrical parts and other chassis parts like brake, clutch and steering parts.
A PROFESSIONAL CHINA TRUCK AND SPARE PARTS SUPPLIER
@Copyright DERUNA
