- ADDRESS：Jinan City, Shandong Province
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com
The SPWL0000000309 Release Bearing is a precision-engineered component designed to ensure smooth and reliable clutch disengagement in heavy-duty trucks. As a premier supplier of authentic Sinotruk Homan parts, we offer this bearing as a direct OEM replacement for SINOTRUK Homan manual transmissions, providing consistent performance and extended service life. The SPWL0000000309 features a robust ball-bearing design with an integral thrust face, capable of handling the high axial loads generated during clutch actuation, while its sealed construction keeps contaminants out and lubrication in.
This release bearing is manufactured from high-quality bearing steel, heat-treated for optimal hardness and wear resistance. Its precision-ground raceways and optimized ball complement deliver smooth rotation and minimal friction, ensuring light pedal effort and precise clutch modulation. With its durable design, the SPWL0000000309 reduces the risk of clutch drag, judder, and premature failure, keeping your driveline operating at peak efficiency.
OEM direct replacement • Sealed for life • Smooth clutch operation
The SPWL0000000309 is a self-aligning, ball-type release bearing designed specifically for diaphragm-spring clutches in SINOTRUK Homan trucks. It features an integrated housing with a smooth, wear-resistant thrust face that contacts the clutch diaphragm fingers, translating pedal movement into clutch disengagement.
The bearing is pre-lubricated with high-temperature grease and sealed with non-contact seals on both sides, providing maintenance-free operation for the life of the clutch. Its compact design and precise internal clearances ensure minimal axial play, resulting in consistent pedal feel and reduced noise.
Manufactured to strict OEM tolerances, the SPWL0000000309 guarantees perfect fitment on the transmission input shaft sleeve and proper interaction with the clutch fork. This bearing is a critical component for achieving smooth gear changes and protecting the transmission from shock loads.
The SPWL0000000309 release bearing is specifically designed for SINOTRUK Homan manual transmissions, including those fitted to Howo A7, T7H, and Homan series trucks. It is compatible with diaphragm-spring clutches using a 35mm inner sleeve diameter and standard fork engagement dimensions.
This bearing is also suitable for many other heavy-duty commercial vehicles and off-highway equipment that use similar release bearing specifications. Its robust construction makes it ideal for applications with frequent clutch cycling, such as urban delivery, construction, and mining operations.
Before installation, always verify that the transmission input shaft sleeve is in good condition and free from scoring. The SPWL0000000309 is a drop-in replacement that requires no modification to the clutch fork or bell housing.
Installing the SPWL0000000309 requires care to avoid damaging the bearing or its seals. Clean the transmission input shaft sleeve and the clutch fork contact points thoroughly. Apply a light coating of high-temperature grease to the sleeve to facilitate sliding during clutch actuation.
Slide the bearing onto the sleeve with the thrust face oriented toward the clutch diaphragm. Ensure that the bearing clips or retaining springs (if applicable) are properly engaged with the fork. Do not hammer or apply excessive force; the bearing should slide on smoothly.
Once installed, verify that the bearing moves freely along the sleeve and that the fork operates without binding. No additional lubrication is required, as the bearing is sealed and pre-greased. However, if the vehicle has been in storage, check that the bearing rotates smoothly by hand.
Maintenance is minimal; however, during clutch replacement, always inspect the SPWL0000000309 for signs of wear, such as rough rotation, excessive play, or damaged seals. Replace it if any abnormality is detected, as a failing release bearing can cause clutch drag and shifting difficulties.
The SPWL0000000309 is manufactured in an ISO 9001-certified facility with rigorous quality control at every stage. The bearing steel is sourced from approved mills and undergoes spectrographic analysis to verify composition. Heat treatment is monitored to achieve consistent hardness and microstructure.
Each bearing is 100% inspected for dimensional accuracy, including bore, outer diameter, width, and radial runout. We also perform noise and vibration tests to ensure smooth operation. Sample bearings are subjected to axial load testing to confirm static and dynamic ratings match OEM specifications.
The seals are tested for effective grease retention and contaminant exclusion. Our quality system ensures that the SPWL0000000309 meets the high standards required for heavy-duty clutch applications, giving you confidence in its reliability.
With our commitment to excellence, you can trust this release bearing to provide long, trouble-free service, minimizing clutch-related downtime.
The SPWL0000000309 release bearing is a vital component for ensuring smooth, reliable clutch operation in your SINOTRUK Homan truck. Its sealed, pre-lubricated design, combined with high-quality materials and precision manufacturing, delivers consistent performance and long service life.
By choosing this OEM-grade bearing, you avoid the risks associated with inferior aftermarket parts – such as premature wear, clutch judder, and shifting difficulty. The SPWL0000000309 is engineered to meet the exact specifications of your vehicle’s transmission, ensuring a perfect fit and optimal function.
Fleet operators will benefit from reduced clutch-related maintenance and increased vehicle uptime. Owner-operators will enjoy smooth, effortless gear changes and the confidence that comes with using genuine-quality components.
Invest in the SPWL0000000309 Release Bearing and experience the difference that a high-quality clutch release bearing makes. Its proven reliability and durability make it the smart choice for professionals who demand the best.
Order your SPWL0000000309 today and keep your truck’s clutch system operating at peak performance for miles to come.
If you have any questions about our products, services, or anything related to what we offer, please don’t hesitate to leave us a message—our dedicated team is always ready to provide prompt and helpful responses to address your concerns. What’s more, when you become our valued customer, we’re delighted to offer you complimentary catalog services, giving you access to detailed, up-to-date information on our full range of products, specifications, and offerings to help you make informed decisions.
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.
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