Kenworth says aluminum hubs are now a front and rear axle option on its class 8 trucks and tractors equipped with Bendix ADB22X air disc brakes.

The new option will benefit on-highway and vocational customers that demand weight-saving components and want an efficient braking package that offers lower operating costs. The aluminum hubs are much lighter, saving almost 80 lb per axle compared to traditional iron hubs. Enhanced heat dissipation and longer brake pad life are added benefits of splined rotors paired with aluminum hubs.

The aluminum hubs are available with front Bendix ADB22X air disc brakes equipped with Dana Spicer steer axles up to 14,600 lb. For rear applications the aluminum hubs are available with Bendix ADB22X air disc brakes on Dana Spicer rear axles up to 23,000 lb (single), 46,000 lb (dual), and 69,000 lb (tridem).

The Bendix ADB22X air disc brake model features a mono-block caliper design that provides a compact brake compared to two-piece caliper models. It also offers optimal sealing from environmental elements.

Air disc brakes virtually eliminate brake fade with no degradation of stopping power, enable a passenger car-like feel, and allow straight, stable stops.