This brake shoe is primarily used in air brake systems for commercial vehicles. It is commonly specified for Meritor Q and Q Plus cam brake systems, making it suitable for rear drive axles and trailer axles . It serves as a critical safety component for heavy-duty applications, including long-haul trucking, distribution, and bus fleets.
Design Features & Benefits
Durable Construction: The advanced shoe design eliminates weak welds and features high-density lining for extended service life and wear resistance .
Thermal Stability: Engineered to retain stability across a wide temperature range, with some high-performance variants capable of withstanding up to 600°C (1112°F) to prevent brake fade .
Enhanced Engagement: The 4707 model features a deeper "S" cam profile compared to other standard shoes (like the 4515). This design allows for better engagement with Q Plus cam systems, resulting in sharper brake response and improved stopping power under heavy loads .
Easy Identification: It is universally identified by the FMSI number 4707 and is often sold as a kit that may include new anchor pins and springs for a complete overhaul .
