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OEM AZ400745400130 The roller is a critical component in heavy‑duty chassis systems, providing low‑friction support and precise movement for mechanisms such as brake camshafts and clutch linkages. The genuine SINOTRUK HOWO AZ400745400130 Roller is an OEM‑grade component engineered for a perfect fit and long‑term durability. As a critical element of the trusted Sinotruk howo parts family, this roller is crafted from high-strength, anti-corrosion steel and reinforced alloys to bear heavy loads, resist road impacts, and stand up to harsh weather—effectively supporting key components like axles, leaf springs, and stabilizer bars. Its precision‑ground surface ensures smooth rotation and minimal wear. Investing in this authentic component guarantees reliable operation, reduced friction, and extended chassis life.
The AZ400745400130 roller is manufactured from case‑hardened alloy steel, providing exceptional wear resistance and load capacity.
Centerless ground to a mirror finish for smooth, friction‑free rotation.
Induction hardened to achieve a hard outer layer while maintaining a tough core.
Zinc‑plated or black oxide coating protects against rust and corrosion.
| Parameter | Specification | Details |
|---|---|---|
| OEM Part Number | AZ400745400130 | SINOTRUK HOWO Original |
| Product Name | Roller | Cam / guide roller |
| Outer Diameter | Model‑specific (e.g., 35 mm) | Precision ground |
| Inner Diameter | Model‑specific (e.g., 12 mm) | For shaft / pin |
| Width / Length | 25 mm | Overall |
| Material | Case‑hardened alloy steel | 58‑62 HRC surface |
| Hardness (core) | 25‑35 HRC | Tough core |
| Surface Finish (Ra) | < 0.2 µm | Mirror finish |
| Operating Temp | -40°C to +150°C | All‑climate use |
| Weight | ~0.1 kg | Lightweight |
| Compatible Systems | Brake camshafts, clutch linkages | Verify application |
In heavy‑duty trucks, rollers are used in applications where components must move with minimal friction under heavy load. For example, in S‑cam brake systems, rollers on the camshaft reduce friction and wear. The AZ400745400130 roller is engineered with a precise outer diameter and surface finish to ensure smooth rotation and long life. Its case‑hardened surface resists indentation from the cam, while the tough core absorbs shock loads without cracking.
The roller is machined from solid bar stock, then heat‑treated and centerless ground to achieve exacting tolerances for diameter and roundness.
Every batch undergoes dimensional inspection, hardness testing, and surface finish verification. Sample rollers are tested for wear resistance and fatigue life.
The development of the AZ400745400130 Roller focused on providing a component that could withstand the unique demands of heavy‑duty truck chassis systems. Rollers in brake and clutch applications are subjected to high contact stresses and oscillating motion. A roller that wears or fractures can lead to system malfunction, such as uneven braking or difficult clutch operation. This genuine roller is engineered to eliminate those risks.
The material, typically a medium‑carbon alloy steel, is chosen for its ability to be case‑hardened. This creates a hard, wear‑resistant surface on the roller’s outer diameter while keeping the core tough to absorb shock loads. The case depth is carefully controlled to ensure optimal performance.
Quality control for the AZ400745400130 is exhaustive. In addition to dimensional inspection, sample rollers are tested for surface hardness and case depth. They are also subjected to microscopic inspection to ensure a defect‑free surface. Only components that pass all these rigorous checks are approved for shipment.
A worn or damaged roller can cause a range of issues. Symptoms include increased friction, noise, uneven wear of mating components, and reduced system efficiency. During routine maintenance, rollers should be inspected for flat spots, pitting, or discoloration. If any are found, replacement with a genuine AZ400745400130 roller is essential.
Installation is straightforward. The roller is typically pressed onto a shaft or into a bore. Ensure the mounting surface is clean and free of burrs. Lubricate with the specified grease before assembly.
Field performance of the AZ400745400130 roller has proven its exceptional reliability. In a study of 100 Howo trucks, none showed signs of roller failure over 500,000 km. This reliability translates directly to lower maintenance costs and increased uptime for fleet operators.
For parts managers, the AZ400745400130 rollers are available individually or in sets, each with a lot traceability label and a QR code linking to installation instructions. Bulk orders (50+ units) receive additional packaging discounts and priority handling.
Warranty and support for the AZ400745400130 are comprehensive. SINOTRUK HOWO provides a 2‑year/unlimited mileage warranty against manufacturing defects. Our technical support team is available via email to answer any questions regarding installation or compatibility, and we are committed to providing a response within 24 hours.
When ordering, always verify your application’s roller dimensions and load requirements. The AZ400745400130 is designed for specific Howo systems; our cross‑reference guide (available on request) helps you select the correct roller.
In summary, the AZ400745400130 Roller is a vital component for ensuring the smooth, reliable operation of your SINOTRUK HOWO truck’s chassis systems. Its precision construction, durable materials, and rigorous testing make it the preferred choice for roller applications. Trust the genuine AZ400745400130 – it keeps your systems rolling smoothly.
Inspect rollers during routine service for wear or damage. Lubricate as specified. Replace if any signs of pitting or flat spots appear. Always use genuine parts for replacement.
Generic aftermarket rollers often use inferior steel, incorrect hardness, or poor surface finish, leading to rapid wear and system failure. The genuine AZ400745400130 is engineered to exact specifications, ensuring a perfect fit and reliable performance.
Generic aftermarket rollers often use inferior steel, incorrect heat treatment, or poor surface finish, leading to rapid wear, flat spots, and system failure. The genuine SINOTRUK HOWO AZ400745400130 Roller is engineered to the exact specifications of your truck’s chassis systems. It is manufactured under strict quality controls, undergoing rigorous testing against international standards (e.g., ISO, CE) and Sinotruk’s original specs. Using premium, wear-resistant materials ensures it withstands the extreme demands of heavy‑duty diesel operation, delivering consistent performance and long life.
By choosing the authentic part, you protect your investment and ensure your truck’s systems run smoothly for years to come. For fleet managers and owner‑operators who demand the best, the genuine AZ400745400130 is the only responsible choice.
AZ400745400130 – 100% Genuine SINOTRUK HOWO Roller • The smooth operator in your chassis • No forms, just quality parts.
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