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简体中文Technical Architecture and System Compatibility
The 4709ES2 Brake Shoe is a critical component of the Meritor (Rockwell) "Q Plus" heavy-duty cam brake system. It is specifically engineered for 16.5" x 7" drive axle and trailer axle applications, utilized extensively in Class 8 trucks and commercial trailers across North America and global markets.
System Identification
The 4709ES2 Brake Shoe is a critical component of the Meritor (Rockwell) "Q Plus" heavy-duty cam brake system. It is specifically engineered for 16.5" x 7" drive axle and trailer axle applications, utilized extensively in Class 8 trucks and commercial trailers across North America and global markets.
Dimensional Precision
For a 4709ES2, the technical benchmark is a 16.5-inch diameter and a 7-inch shoe width. Precision in the table-to-web welding and the placement of the anchor pin holes is vital to prevent "brake drag" and ensure even lining wear.
20 Years of Expertise
Zhejiang Bangchi Auto Parts Co., Ltd. was founded by a team with over 20 years of experience in the brake industry. Our R&D focus ensures that every 4709ES2 Brake Shoe we manufacture meets the high-stress demands of heavy-duty braking environments.
OE Cross-References for Global Sourcing
To ensure seamless maintenance and procurement, the 4709ES2 Brake Shoe corresponds to several major industry reference numbers. Cross-referencing these ensures that the replacement part matches the original equipment geometry exactly:
Bangchi maintains an annual capacity of 2 million brake shoes. Our ability to provide accurate lined brake shoes according to these OE standards has earned us strategic cooperation with well-known domestic and overseas OEM customers.
Material Specifications and Quality Control
We utilize high-strength carbon steel for the webs and tables of the 4709ES2 Brake Shoe. The welding process is strictly controlled to maintain structural integrity under high torque loads, preventing the shoe from deforming or cracking during emergency braking.
Product quality is our core competence. We operate under the rules of the IATF 16949 quality system, implementing rigorous checks on surface finish (Ra), hole diameter tolerances, and coating thickness to prevent corrosion.
When supplied as a "lined shoe," Bangchi utilizes premium friction materials designed for low heat fade and high mileage life. This is essential for the 4709ES2 series, which often operates in heavy-haul and long-distance logistics.
Why Choose Bangchi for Heavy Duty Brake Shoes?
With a management team of over 20 industry veterans, we have built a reputation for stable quality and an annual turnover exceeding 100 million RMB.
Since 2016, we have constantly improved our production lines to offer high-precision heavy-duty brake shoes that are accepted by global markets for their reliability.
Whether serving domestic manufacturers or overseas aftermarket distributors, Bangchi provides the technical depth and production scale required for the most demanding 16.5" x 7" braking applications.
4709ES2 Technical Specification Matrix
| Specification Metric | Technical Value / Requirement |
|---|---|
| Brake Type | S-Cam (Q Plus Series) |
| Shoe Diameter | 16.50 inches (419.1 mm) |
| Shoe Width | 7.00 inches (177.8 mm) |
| Material Standard | High-Strength Welded Steel |
| FMSI Reference | 4709 / 4709E / 4709ES2 |
| Certification | IATF 16949 / ISO 9001 |
Hardcore Technical FAQ
Technical References
- IATF 16949:2016: Quality management system requirements for automotive production.
- SAE J661: Brake Lining Quality Control Test Procedure.
- FMVSS 121: Federal Motor Vehicle Safety Standard for Air Brake Systems.
