- ADDRESS:Wanda Plaza, Jinan, Shandong, China
- Wanda Plaza, Jinan, Shandong, China
- +8617615809553
- info@deruna.com


The genuine ZF tapered roller bearing with OEM number 750117009 is engineered to deliver exceptional load capacity, precise rotational accuracy, and extended service life for SINOTRUK Sitrak heavy-duty trucks. Designed to withstand extreme radial and axial forces, this bearing is a critical component in transmissions, drive axles, and wheel hubs. As a cornerstone within the Sinotruk sitrak parts portfolio, the 750117009 ZF tapered roller bearing guarantees factory‑grade fitment, superior wear resistance, and the reliability that ZF technology is known for worldwide.
The 750117009 ZF tapered roller bearing is the result of ZF’s century‑long expertise in precision rolling element technology. Unlike generic bearings that often use lower‑grade steel and imprecise geometry, this genuine component features case‑hardened chrome steel (100Cr6) with a controlled microstructure that provides exceptional resistance to fatigue and plastic deformation. The tapered geometry allows it to simultaneously support heavy radial loads and high thrust loads, making it ideal for wheel ends, differentials, and transmission shafts in SINOTRUK Sitrak trucks.
Real‑world field data from fleets operating Sitrak C7H and C9H vehicles shows that using the genuine 750117009 bearing reduces driveline failures by over 60% compared to aftermarket alternatives. Its optimized roller geometry and ultra‑smooth raceway finish minimize friction, lower operating temperatures, and extend lubrication intervals. For fleet owners, this translates directly into reduced downtime, lower total cost of ownership, and enhanced vehicle resale value.
Engineered to handle combined radial and axial loads up to 180 kN, ensuring reliability under full GVW conditions.
Case‑hardened steel with controlled carbide distribution delivers L10 life up to 500,000 km under normal operating conditions.
Special surface finish and optimized internal clearances promote oil film retention, reducing friction and heat generation.
| Parameter | Specification |
|---|---|
| OEM Number | 750117009 |
| Product Type | Single Row Tapered Roller Bearing |
| Brand | ZF / SINOTRUK Sitrak Original Equipment |
| Application | Sitrak C7H, C9H, A7, TX series – wheel hubs, differentials, transmission |
| Bore Diameter (d) | 80.00 mm |
| Outer Diameter (D) | 140.00 mm |
| Width (T) | 36.00 mm |
| Dynamic Load Rating (C) | 212 kN |
| Static Load Rating (C0) | 290 kN |
| Limiting Speed (grease) | 3,200 rpm |
| Material / Heat Treatment | 100Cr6 steel, case‑hardened to 60–64 HRC |
Proper installation of the 750117009 ZF tapered roller bearing is critical for achieving its full service life. Always use a hydraulic press or appropriate tool to apply force only to the interference‑fit ring; never hammer directly. Ensure the bearing seat is clean and free from burrs. Lubricate with high‑quality lithium‑based grease meeting NLGI Grade 2 specifications. When setting bearing preload, follow Sinotruk’s specified torque values and use a dial indicator to verify end‑play or preload as per the service manual.
For wheel hub applications, always replace the bearing together with the seal and the mating cup (if separate). Regular inspection intervals should include checking for unusual noise, vibration, or excessive play during routine maintenance. Using the genuine 750117009 bearing ensures correct internal clearance and raceway geometry, which are essential for maintaining proper gear contact patterns and preventing premature failure.
Every 750117009 ZF tapered roller bearing is manufactured in IATF 16949 certified facilities, with 100% dimensional inspection and 100% ultrasonic testing for internal material integrity. The steel is sourced from certified mills and undergoes controlled heat treatment to achieve the optimal case‑core hardness profile. Each bearing is individually tested for radial runout and noise (dB) before packaging. Counterfeit bearings often use soft steel and lack proper heat treatment, leading to rapid wear; the genuine 750117009 guarantees safety, durability, and full ZF warranty coverage.
Aftermarket tapered roller bearings frequently use lower‑grade steel (e.g., AISI 52100 without optimized heat treatment) and have inconsistent roller geometry, resulting in higher friction, premature spalling, and short service life. In contrast, the genuine 750117009 features a proprietary ZF roller profile that distributes loads evenly across the entire roller length, eliminating edge loading that causes early failure. Many non‑genuine bearings also have inaccurate internal clearances, which can lead to excessive play or preload, causing overheating and seal failure.
Choosing the original 750117009 ZF bearing also ensures that the component carries full traceability, including batch number and production date. This guarantees compliance with Sinotruk warranty requirements and provides peace of mind for fleet managers who demand maximum uptime. By investing in genuine ZF bearings, you protect your driveline investment and avoid the hidden costs of premature component failure.