Type 30/28 Spring Brakes

Type 30/28 spring brake chambers feature a standard 30-square-inch service diaphragm paired with a slightly smaller 28-square-inch parking spring section. This hybrid configuration is often mandated by specific OEM axle setups where slightly reduced parking brake hold is required without sacrificing service braking power.

Commonly found on specific transit buses and vocational trucks, BRC ensures our 30/28 aftermarket replacements perfectly match the required OEM force-output curves and spatial dimensions for safe, compliant braking.