CBX46 and CBX50 Air Suspension/Slider Axle System

SAF-Holland introduces the CBX46 and CBX50 Air Suspension/Slider Axle Systems featuring wider bearing configurations for improved load distribution.


SAF-HOLLAND announces the expansion of its CBX Series Air Suspension/Slider Axle System offering for the North American Trailer Market with its new SAF CBX46 and CBX50.

  • Offers robust 5.75-inch diameter axle technology along with increased capacity and cast steel suspensions
  • Provides balance of strength and weight for performance in on- and off-highway applications
  • Available with the optional SAF INTEGRAL Air Disc Brake Axle System with the P89 optional wheel end package
  • P89 accommodates both industry-standard single wide-based wheels with up to 2-inch offsets and dual wheel configurations
  • Wider bearing configuration helps distribute load between bearings
  • Features SwingAlign for fast and convenient axle alignment by the adjustment screw, requiring less than 250 ft.-lbs. of torque to adjust
  • QwikRelease Pin Pull provides easy slider adjustments, allowing one person slider repositioning and easy elimination of bound-up pins
  • Comes standard with BLACK ARMOURTM metal protection process which chemically bonds with metal to form a protective skin that is impervious to water and stands up against harsh anti-icing agents
  • BLACK ARMOUR is eco-friendly, and when compared to galvanization is less expensive and lighter weight


  • Designed for greater efficiency and economy
  • Features 46,000-pound capacity
  • Includes substantial upgrade to overall slider strength and rigidity, incorporating a thicker 80 KSI high strength steel slider sub-frame material shared with the robust CBX69 Tri-Slider Series
  • P89 accommodates up to 2-inch offset wheels for application and maintenance flexibility, allowing fleets to choose the wheel end offset desired
  • Thicker side sill yields a 31% increase in overall structural rigidity 
  • Trailing arm shared with the SAF CBX23 Air Suspension Axle System provides increased strength and load capacity while minimizing overall weight
  • Capable of handling increased duty cycle and axle capacity demands for moderate- to heavy-duty van and reefer applications


  • Features 50,000-pound capacity
  • Well suited for heavy-duty van and reefer applications, and is also approved for the Mexican market
  • Shares same increased structural improvements as the CBX46, utilizing the 80 KSI yield slider sub-frame material 
  • Further structurally enhanced with two additional crossmembers to create robust and structurally rigid design
  • Designed with SAF CBX25 Air Suspension trailing arm, providing increased system strength
  • Combination of components produces light, yet robust design