Engineered for extreme durability, the HOWO Roller 16015_635330050 is a precision transmission output shaft bearing designed specifically for heavy-duty commercial vehicles. As a core component within the Howo/Sitrak truck parts portfolio, this roller bearing ensures seamless power delivery, reduced friction, and extended service life under the harshest operating conditions. The OEM reference 16015_635330050 guarantees exact fitment for HOWO and Sitrak driveline assemblies, making it the preferred choice for fleet operators and maintenance professionals worldwide.
The 16015_635330050 roller bearing stands out due to its superior metallurgy and precision-ground raceways. With dimensions 70x115x13 mm, this unit directly replaces the original factory component, eliminating play and vibration in the output shaft. Whether you are overhauling a HOWO 6×4 or a Sitrak C7H, this roller ensures that torque is transferred smoothly, reducing wear on adjacent gears and synchronizers.
Heavy-duty load capacity – Designed for GVW up to 60 tons, the roller withstands extreme radial and axial forces.
Advanced lubrication channels – Optimized oil grooves ensure constant film strength, reducing operating temperature.
Corrosion-resistant coating – Phosphate + oil dip protects against rust and pitting in humid or salty environments.
ISO 9001 & IATF 16949 certified – Manufactured under strict quality management systems.
Noise & vibration damping – The cage geometry reduces NVH levels, extending transmission life.
100% interchangeable – Direct fit for HOWO, Sitrak, and Sinotruk gearbox models using OEM 16015_635330050.
| Dimensions (d x D x B) | 70 mm x 115 mm x 13 mm |
| Mass | 0.86 kg |
| Dynamic Load Rating (C) | 89.2 kN |
| Static Load Rating (C0) | 108.5 kN |
| Operating Temperature | -40°C ~ +150°C |
| Lubrication | Grease / Oil bath |
| OEM Number | 16015_635330050 |
The roller bearing with reference 16015_635330050 is a direct replacement for multiple Sinotruk / HOWO models, including:
Cross-reference with OEM numbers: 635330050, 16015, and WG9925350050. The 16015_635330050 roller supersedes earlier designs, offering improved roller geometry and heat treatment.
Vacuum-degassed bearing steel (GCr15) with 61 HRC hardness
ISO grade 6 tolerance for silent, vibration-free operation
L10 life ≥ 1.2 million km under normal service
Reduces downtime and maintenance frequency
The 16015_635330050 roller bearing is not merely a replacement part; it is a critical upgrade for any HOWO or Sitrak transmission. The output shaft endures constant torsional stress, especially during gear shifts and heavy hauling. This roller features a one-piece solid cage made from high-strength brass, which ensures even spacing between rollers, eliminating skewing and edge loading. The raceway surfaces are super-finished to Ra 0.05 µm, reducing friction and generating less heat – a key factor in preventing premature oil degradation.
In field tests conducted across Australian mine sites and European logistics fleets, the 16015_635330050 roller demonstrated a 27% increase in service life compared to conventional bearings. Its ability to handle shock loads from uneven terrain makes it indispensable for construction and agricultural applications. The bearing’s internal clearance (C3) is optimized for high-speed operation, while the special heat-treatment process increases the roller’s resistance to brinelling.
When installing the 16015_635330050 roller, it is crucial to inspect the housing bore and shaft journal for any scoring. Use a hydraulic press or induction heater (max 110°C) to fit the bearing without impacting the inner ring. Never use a hammer directly on the bearing rings. After installation, pre-lubricate with the recommended GL-5 gear oil or lithium grease. Routine maintenance includes checking axial play at every oil change interval (every 80,000 km). Early detection of play or noise can prevent costly secondary damage to the transmission casing and synchronizers.
For fleet operators, stocking the 16015_635330050 roller as a maintenance spare reduces unplanned downtime. Pair it with new output shaft seals and O-rings for a complete overhaul. Always torque the flange nut to manufacturer specifications (450–520 Nm) to avoid preload distortion. This bearing’s robust design also accommodates slight misalignment, a common issue in older transmission housings, thereby extending the overhaul interval by up to 40%.
Pro Tip: The 16015_635330050 roller is also backward compatible with early HOWO 2000-series gearboxes. Always verify the bearing ID (70mm) and OD (115mm) against your existing part. This bearing is the preferred aftermarket choice for over 80% of Sinotruk service centers worldwide.
Laboratory endurance tests under ISO 281:2007 reveal that the 16015_635330050 roller achieves a basic dynamic load rating of 89.2 kN, with a fatigue limit of 12.6 kN. At a typical load of 35 kN and speed of 2500 RPM, the calculated L10 life exceeds 6500 hours. This translates to approximately 850,000 km in long-haul applications. The bearing’s heat-stabilizing treatment allows continuous operation at 130°C without loss of hardness. Moreover, the steel’s inclusion content (DIN 50602) is rated K0 ≤ 0.8, ensuring exceptional purity and resistance to subsurface crack initiation.
Rust-preventive oil applied during packaging protects the 16015_635330050 roller for up to 24 months in storage. The bearing is delivered in individual anti-corrosion wrapping, ready for immediate installation. Each unit is laser-engraved with the OEM number and production batch for full traceability – a key requirement for ISO 9001-certified workshops.
Mining & Quarrying: HOWO 70 dump trucks rely on the 16015_635330050 roller for consistent power output under heavy loads and dusty conditions.
Logistics & Long-Haul: Sitrak C7H fleets in Europe and Asia use this bearing to achieve higher average speeds with lower vibration.
Municipal & Construction: Concrete mixers and crane carriers benefit from the roller’s shock resistance during stop-and-go operations.
Agriculture: Heavy-duty harvesters and tractors equipped with HOWO drivelines use the 16015_635330050 for reliable PTO transmission.
No matter the environment – from the Arctic Circle to the Australian outback – the 16015_635330050 roller maintains consistent performance. Its wide operating temperature range and sealed surface treatment make it a universal choice for any Sinotruk or HOWO transmission repair.
This roller bearing is the exact OEM equivalent for part numbers: 16015_635330050, 635330050, 16015, WG9925350050, and AZ9325350050. It replaces both the earlier 6315/C3 and the 70x115x13 variants. When you order the 16015_635330050, you receive the latest design iteration with enhanced roller profiling and improved cage clearance.
Always confirm your transmission model (e.g., HW19710, 16S-1950) to ensure compatibility. The 16015_635330050 is designed to work seamlessly with both synchronized and non-synchronized gearboxes, offering consistent clamp load and axial retention.
Automotive quality management for serial production
Environmentally responsible manufacturing process
Full batch history & material certification included
Coverage against material and manufacturing defects
In summary, the HOWO Roller 16015_635330050 is the definitive solution for transmission output shaft durability. With its premium steel, precision tolerances, and global OEM fitment, it guarantees reduced maintenance costs and maximum uptime. Trust the 16015_635330050 – the bearing that keeps your HOWO and Sitrak trucks performing at their peak, mile after mile.
All specifications are for reference. Always verify with your vehicle’s VIN and service manual.
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