1. Surface treatment: Electrophoresis coating, spray coating
2. Heat treatment: Induction quenching
3. Material: high-quality carbon steel
4. Characteristics: Strong corrosive resistance and excellent braking performance
5. Approved by SAE and FMVSS-121 test
Brake shoe 4515Q fits many models of heavy duty trucks, and semi trailers.
Cross reference: 4515EZT, A913222S1293, R4515, 01128, 1128, M1421, 21898, 01128, 4515Q, 67379, L1478, 67379, A3222S1293, A913222S1293, 4515EST, 7A3127, G2058987
• Process:
Steel plate-punching-milling-welding-drilling-induction quenching-electrophoresis coating-inspection-restriking-packing.
• Weld detail:
Carbon dioxide gas arc welding is to guarantee strength. No cracked or weakened welds, no distortion of the shoe webs.
• Cam and anchor detail:
Induction hardened cam and anchor is for long-term durability and life. Hardness is up to HRC30-40. No wear to the pin recess prevents lateral movement.
• Shoe platform detail:
No corrosion or distortion to the shoe platform provides optimum lining security and geometric operation helping reduce brake noise.
• Rivet hole detail:
No damage, elongation or ovality of the rivet hole reduces the risk of loosening rivets.
Brake Shoe FMSI® Number |
4515Q |
Brake Configuration |
'S' cam |
Air Chamber |
Type 30 Long Stroke |
Slack Adjuster Length |
5-1/2 inches |
Adjustment |
Automatic |
Brake Size |
16-1/2 x 7 inches |
Drum Effective Radius |
8-1/4 inches |
Axle Load (GAWR) |
23000 lb |
Static Loaded Radius/Rolling Radius |
19-3/5 inches |
Test Inertia |
952 slug·ftÇ |
Hardness |
HRC30-40 |
Control Thermocouple |
Hottest lining, recessed 0.040" below surface |