M16WKR25-103N
Camshaft
Bendix

The camshaft type unit is a critical link in the brake actuation chain for trailer and heavy truck applications, delivering precisely timed cam motion to actuate the brake shoes via the S-CAM mechanism. Key dimensional and geometric attributes are defined to support correct mounting, rotation, and engagement, with a focus on payload handling and long-distance operation. This component supports a 16.50 inch brake diameter footprint, a head length of 10.38 inches, and a spline diameter of 1.50 inches, with 28 splines in the active drive interface and a clockwise rotation direction. The axle type is specified as trailer, underscoring its suitability for semi-trailers and other towed configurations. VMRS classification 013-001-031 ensures compatibility with common replacement catalogs and service procedures used by maintenance crews. Category 41394 situates it within a broader family of camshaft-based braking elements designed for dependable performance under load, temperature variation, and road grade changes. Practical applications include highway fleets and regional haulers where predictable brake timing translates to safer, more efficient braking cycles; cross references are not listed, indicating direct fit within standard drum brake assemblies.