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- Wanda Plaza, Jinan, Shandong, China
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- info@deruna.com
The SPWL0000000257 Needle Roller Bearing is a high-performance, compact bearing designed for applications where radial space is limited but load requirements are severe. As a premier supplier of genuine Sinotruk Homan parts, we offer this needle roller bearing as a direct OEM replacement for SINOTRUK Homan transmissions, gearboxes, and auxiliary drives. The SPWL0000000257 features a full complement of needle rollers with an optimized cage design, providing exceptional radial load capacity, low friction, and extended service life under high-speed and heavy-duty operating conditions.
This bearing is manufactured from high-carbon chromium steel, case-hardened to achieve a tough, impact-resistant core and a wear-resistant surface. Its precision-ground raceways and rollers minimize friction and heat generation, ensuring smooth operation and reduced power loss. The SPWL0000000257 is engineered to withstand shock loads, vibration, and contamination, making it an ideal choice for the demanding environments typical of heavy-duty truck drivelines.
OEM direct replacement • Full complement of rollers • High radial load capacity • Precision ground raceways
The SPWL0000000257 needle roller bearing is a compact, high-load-capacity component that utilizes a drawn cup outer ring and a full complement of needle rollers. This design maximizes the number of rolling elements within a given envelope, providing superior radial rigidity and load distribution compared to other bearing types of similar size.
The bearing’s internal geometry is optimized to reduce edge stress, allowing it to accommodate slight misalignments and shaft deflections without compromising performance. The rollers are precision-ground and matched to the raceway for even load distribution, while the cage (if present) ensures accurate roller spacing and prevents skewing at high speeds.
Manufactured to the exacting standards of SINOTRUK Homan original equipment, the SPWL0000000257 guarantees consistent fit and function. Its robust construction and high-quality materials provide exceptional durability, making it a preferred choice for critical applications such as mainshafts, layshafts, and pinion supports in heavy-duty transmissions.
The SPWL0000000257 needle roller bearing is specifically engineered for SINOTRUK Homan heavy-duty trucks, including Howo A7, T7H, and the Homan series. It is used in transmission mainshafts, auxiliary gearbox shafts, and differential pinion supports, where its compact size and high load capacity are essential.
This bearing is also compatible with many other commercial vehicle and industrial applications that require a 22x34x18 mm needle bearing. It is commonly found in agricultural machinery, construction equipment, and material handling systems.
When replacing, verify the shaft and housing tolerances to ensure proper fit. The SPWL0000000257 is a direct replacement that simplifies inventory management and reduces installation time.
Proper installation of the SPWL0000000257 is essential for achieving full performance. Begin by thoroughly cleaning the housing bore and the shaft, removing all dirt, rust, and old lubricant. Inspect the shaft surface for scoring or wear; if damaged, the shaft must be replaced or reconditioned.
Using a suitable press or installation tool, press the bearing into the housing, applying force evenly to the outer ring to avoid distortion. Ensure the bearing is seated squarely and fully against the shoulder. After installation, apply the recommended grease to the rollers and shaft surface.
Regular maintenance includes periodic inspection for abnormal noise, vibration, or temperature rise. If any signs of wear or spalling are detected, replace the SPWL0000000257 immediately. Relubrication intervals should follow the vehicle manufacturer’s recommendations, typically during major service intervals.
Always use the correct grade of grease and avoid overfilling, which can cause overheating. With proper care, this bearing will provide long, trouble-free service.
The SPWL0000000257 is produced in an ISO 9001-certified facility, adhering to the most rigorous quality standards. The steel is sourced from approved mills and undergoes spectrographic analysis to verify composition. Heat treatment is precisely controlled to achieve the optimal balance of hardness and toughness.
Every bearing is 100% inspected for critical dimensions, including bore diameter, outer diameter, width, and roller roundness. We also perform random dynamic testing to confirm load ratings and fatigue life. The raceways are verified for surface roughness using advanced profilometers.
Our commitment to quality ensures that the SPWL0000000257 consistently meets or exceeds OEM specifications. This dedication to excellence translates into reliable performance, reduced downtime, and lower total cost of ownership for fleet operators.
With a comprehensive warranty, this bearing offers peace of mind for even the most demanding applications.
The SPWL0000000257 needle roller bearing is a vital component for maintaining the efficiency and reliability of your SINOTRUK Homan drivetrain. Its high-density roller complement, precision manufacturing, and robust materials ensure exceptional load capacity and long service life, even under the most severe operating conditions.
By choosing this OEM-quality bearing, you avoid the risks associated with non-genuine parts – such as premature wear, noise, and catastrophic failure. The SPWL0000000257 is engineered to deliver consistent performance, reducing unscheduled downtime and maintenance costs.
Fleet operators will benefit from standardized inventory and extended service intervals. Owner-operators will gain confidence in their vehicle’s reliability, knowing that critical rotating components are protected by a bearing that meets the highest standards.
Invest in the SPWL0000000257 Needle Roller Bearing and experience the difference that a genuine SINOTRUK Homan part makes. Its proven design and durability make it the smart choice for professionals.
Order your SPWL0000000257 today and keep your truck performing at its best.
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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