635333049 stands as the definitive OEM reference for high-performance ball bearings used across heavy-duty axles and gearboxes. As a core component within the Howo/Sitrak truck parts ecosystem, this bearing delivers unmatched durability, reduced friction, and extended service life under extreme loads. Engineered to meet or exceed original equipment standards, it ensures seamless integration and reliable operation in both on-highway and off-road conditions.
Every Ball bearing undergoes rigorous heat treatment and superfinishing, reducing noise and vibration by up to 30%. The high-carbon chromium steel ensures resistance to spalling and pitting, even in high-torque transmissions.
Designed with optimized cage geometry, this ball bearing supports radial and axial loads simultaneously. Its Ball Bearingsprecision-ground raceways guarantee smooth rotation, lowering operating temperatures and improving fuel efficiency for your Howo or Sitrak truck.
| Parameter | Value |
|---|---|
| OEM Number | 635333049 |
| Type | Deep groove ball bearing |
| Inner Diameter (mm) | 50 |
| Outer Diameter (mm) | 90 |
| Width (mm) | 20 |
| Dynamic Load (kN) | 35.1 |
| Static Load (kN) | 23.2 |
| Grease limit speed (rpm) | 7500 |
| Sealing | 2RS / open option |
The ball bearing is extensively used in Howo A7, Howo T7, Sitrak C7H, and TX series drive axles, as well as in differential and transfer case assemblies. Its precision matches the exacting demands of Sinotruk powertrains, ensuring minimal play and maximum torque transfer. Whether you are maintaining a fleet of dump trucks or long-haul tractors, this bearing reduces downtime and keeps your operation profitable.
Proper installation is critical to maximize the life of your ball bearing. Always use a suitable press or bearing heater to avoid brinelling. Clean the housing and shaft thoroughly, and apply a thin layer of anti-seize compound. For the 635333049, torque the retaining nut to 280–320 N·m. Regular lubrication with lithium-based grease every 40,000 km will keep the bearing in peak condition. Every batch of 635333049 ball bearings is subjected to dimensional accuracy tests, hardness profiling, and ultrasonic flaw detection. We provide full traceability from steel mill to finished product.
| Performance metric | 635333049 | Standard bearing |
|---|---|---|
| Fatigue limit (kN) | 12.5 | 9.8 |
| Friction torque (N·mm) | 180 | 240 |
| Operating temp. range | -40~160°C | -30~120°C |
| Service interval (km) | 80,000 | 50,000 |
Every batch of 635333049 ball bearings is subjected to dimensional accuracy tests, hardness profiling, and ultrasonic flaw detection. We provide full traceability from steel mill to finished product. Our bearings are 100% inspected before shipping, ensuring that your Howo/Sitrak truck parts receive only the finest components. With a robust supply chain, we maintain stock levels to meet urgent maintenance schedules.
Choose the ball bearing for its unparalleled reliability and precision. Backed by decades of engineering expertise, this component is the preferred choice for workshops and fleet managers worldwide. When you need trustworthy Howo/Sitrak truck parts, this bearing delivers consistent performance under the most challenging conditions – from arctic cold to desert heat.
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