The 0750119161 bearing inner ring is a precision component that forms the inner raceway for rolling elements in a wide range of bearing assemblies. Its primary function is to provide a smooth, hard surface for rollers or balls to rotate against, while maintaining precise dimensional tolerances to ensure correct bearing preload and clearance. In heavy‑duty trucks, the integrity of the bearing inner ring directly affects the performance and longevity of transmissions, differentials, wheel hubs, and auxiliary drives. A worn or damaged inner ring can lead to increased friction, heat generation, noise, and eventual catastrophic failure of the bearing assembly. By installing the genuine 0750119161 bearing inner ring, you restore factory‑specified clearances and preload, ensuring smooth rotation, reduced wear, and extended service life.
Precision Raceway Surface
Ground to micron tolerances for smooth rolling element contact and reduced friction.
High Load Capacity
Engineered to distribute loads evenly, minimising stress concentrations and extending bearing life.
Superior Material Quality
Manufactured from high‑grade bearing steel with advanced heat treatment for exceptional durability.
OEM‑Exact Fit
Manufactured to Sinotruk’s original specifications – direct replacement with no modifications.
| Parameter | Specification |
|---|---|
| OEM Number | 0750119161 |
| Product Name | Bearing Inner Ring |
| Brand | HOWO / Sinotruk |
| Inner Diameter (d) | 55 mm ± 0.01 mm |
| Outer Diameter (D) | 85 mm ± 0.01 mm |
| Width (B) | 22 mm ± 0.05 mm |
| Material | High‑grade bearing steel (GCr15) with heat treatment |
| Operating Temperature | -40°C to +120°C |
| Hardness (HRC) | 60‑64 HRC |
| Quality Standard | Original Sinotruk / HOWO OEM specification |
The 0750119161 bearing inner ring is a critical component used in a wide range of rotating assemblies across the HOWO and Sitrak model ranges, including:
The 0750119161 bearing inner ring is manufactured to the highest quality standards, ensuring it outperforms generic aftermarket alternatives. Made from premium bearing steel (GCr15) and precision‑heat‑treated to achieve optimal hardness and microstructure, this inner ring offers excellent wear resistance and dimensional stability. The raceway surface is ground to sub‑micron tolerances, ensuring a smooth, consistent surface for rolling elements. The bore and outer diameter are machined to exacting tolerances, guaranteeing perfect fitment on shafts and in housings. Each inner ring is inspected for roundness, surface finish, and dimensional accuracy to guarantee compliance with OEM specifications. This commitment to quality translates into reliable, maintenance‑free operation, reducing downtime and extending the service life of your vehicle’s drivetrain.
Precision Grinding
Raceway surface ground to sub‑micron accuracy for smooth, quiet operation.
Advanced Heat Treatment
Optimised hardening process ensures high core toughness and surface hardness for extended fatigue life.
100% Dimensional Inspection
Every inner ring is verified against OEM drawings to guarantee perfect fit and function.
Genuine OEM Quality
Built to Sinotruk’s original specifications – guaranteed performance and reliability.
Installing the 0750119161 bearing inner ring requires careful attention to cleanliness and proper techniques. Always refer to the appropriate workshop manual for your HOWO or Sitrak model. Ensure the shaft and housing are clean, free from burrs, and within specified tolerances. Use a suitable press or installation tool to apply force evenly to the inner ring, avoiding damage to the raceway surface. Apply a thin layer of clean bearing grease to the shaft before installation. After installation, verify the inner ring is fully seated and that the bearing rotates freely. During routine maintenance, inspect the inner ring for signs of wear, pitting, or scoring, and replace if necessary.
Choosing the 0750119161 genuine bearing inner ring is an investment in the long‑term reliability and performance of your HOWO or Sitrak truck. Inferior aftermarket inner rings often use substandard materials, imprecise grinding, and inadequate heat treatment – leading to premature wear, noise, and catastrophic failure. By using a genuine OEM component that adheres to Sinotruk’s exacting standards, you guarantee perfect fitment, consistent load capacity, and maximum durability. Fleet operators and workshop professionals worldwide trust this inner ring to maintain the integrity of their transmissions, differentials, and hub assemblies. With its proven quality and reliability, it is the definitive choice for those who demand excellence.
“We have standardised on the 0750119161 bearing inner rings for all our transmission and differential overhauls. The fit is perfect, the bearings run quiet, and we have seen a significant reduction in wear‑related failures. This is the only inner ring we trust for our fleet.”
The 0750119161 bearing inner ring is designed to fit a comprehensive range of HOWO and Sitrak heavy‑duty trucks, including the most popular models. It is a direct replacement for the original inner ring fitted at the factory, ensuring a seamless swap without any modifications. Always confirm the OEM number 0750119161 on your original inner ring or by cross‑referencing your vehicle’s VIN with the Sinotruk parts catalogue. For any uncertainty, consult your local HOWO or Sitrak dealer with your chassis number.
HOWO and Sitrak trucks are subjected to the most punishing environments – from extreme cold to desert heat, from constant vibration to corrosive road salts. The 0750119161 bearing inner ring is engineered to withstand these extremes. Its high‑grade bearing steel and precision heat treatment ensure resistance to deformation, fatigue, and wear under heavy loads and thermal cycling. The precision‑ground raceway maintains its surface integrity, ensuring consistent rolling element contact and low friction. This inner ring is built to deliver reliable, maintenance‑free performance for the entire service life of your vehicle, reducing unplanned downtime and repair costs.
Extreme Temperature Tolerance
Reliable from -40°C to +120°C – no loss of material properties or dimensional stability.
Vibration & Impact Resistant
Robust construction withstands constant road vibrations and shock loads without premature failure.
Corrosion Protection
Advanced surface treatment provides long‑term resistance to moisture and aggressive chemicals.
High Fatigue Life
Designed for millions of cycles under rated load, meeting or exceeding OEM durability requirements.
The 0750119161 bearing inner ring is supplied in protective packaging to ensure safe delivery and convenient storage. Each inner ring is individually wrapped in anti‑corrosion paper and sealed in a plastic bag to prevent contamination. Bulk packaging options are available for workshops, fleet depots, and OEM service centres, offering cost savings and streamlined inventory. Every pack is clearly labelled with the OEM number, product name, and key specifications for easy identification. Always verify the OEM number 0750119161 on the label before installation to ensure you are using the correct genuine component.
OEM: 0750119161 | Genuine HOWO / Sitrak Bearing Inner Ring
Choose 0750119161 bearing inner ring – the professional‑grade precision component that delivers superior load capacity, exceptional durability, and reliable performance for your HOWO or Sitrak truck.
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