Bendix Spicer Foundation Brake – a joint venture of Bendix Commercial Vehicle Systems LLC and Dana Corp. – unveiled at the Mid-America Trucking Show Wednesday, March 21, a lightweight package of its Bendix ADB22X air disc brake that it says could help weight-sensitive operations justify the selection of disc brakes over drum brakes. Peterbilt has added the ADB22X as an option on new on-highway truck builds, effective April 2.
The brake package features an aluminum hub and splined disc assembly that weighs up to 240 pounds less than drum brake configurations on a typical 6Ă—4 tractor and up to 209 pounds less than other air disc brakes. The aluminum assembly reduces rotor dynamic stresses, improves thermal balance and offers longer brake life, Bendix Spicer says.
