ZF Tag Suspension
10,000 – 20,000 lbs.
Thanks to its modular design, the ZF axle systems allows for tailored axle configurations, depending on the installation environment. The independent suspension allows for active or passive steering; steered axle systems increase a coach’s maneuverability, enabling much smaller turning circles and reducing tire wear, while ZF’s passive tag axle features steering dampers and pneumatically activated lock cylinders. For active rear axle steering, ZF’s RAS/RAS-EC systems are the perfect solutions.
Neway Tag Axle
More than just an “add-on” to handle more weight, the Neway Tag Axle is designed to be integrated into the overall chassis and braking system, enhancing overall stability and providing consistent braking.
- Additional payload capacity – up to 47,000 lb. GVWR
- Longer floor plans – the tag axle accommodates floor plans up to 45 feet for more space and design options
- Automatic load proportioning system – an industry first – distributes weight proportionately across all three axles to ensure a smoother, more comfortable ride and decrease tire scrub during low speed and back up
- CAD-designed coupling plate provides superior strength in high-stress areas
- Five-year, 100,000-mile coolant is pre-charged with SCA
- Air-disc brakes with ABS dramatically decrease stopping distance in virtually all braking conditions, while minimizing fade during rapid or extensive application of the brakes
UltraSteer®
Handling Luxury with Precision.
As the first line of tag axles that are fully-integrated and precision-tuned to react to turns and maneuvers of the coach, UltraSteer establishes a new standard for premium ride and handling.
Features
- Auto-Locks to straight @ 20mph and in reverse for complete control
- Flexible coach packaging for increased storage options
- QuickAlign and optimized rubber bushings increase suspension life and reduce maintenance
- Compatible with disc and drum brakes
Increased Maneuverability
- Significant reduction in curb-to-curb turning radius
- Remarkably tight turning angle
Improved Ride & Handling
- UltraSteer’s outboard-mounted design is more reactive to roll input than inboard-mounted shocks, which improves handling in turns and maneuvers such as sudden lane changes
- Wide track suspension arms provide increased lateral stiffness over narrow track suspension arms, improving handling and safety (B-Series)
Tire Savings
- In contrast to rear mounted tie rods that can still cause tire scrub, the UltraSteer’s forward-mounted tie rods and correct steering geometry enable the inside wheel to have a 12° turning angle and follow the ideal turning path—eliminating tire scrub
Options
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B-Series
A straight beam axle and wide track suspension arms provide increased lateral stiffness, delivering improved handling and safety in turns and sudden maneuvers while offering OEMs flexible floorplan options.
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I-Series
An independent suspension on the tag axle provides enhanced overall ride quality and stability, with a comparable weight capacity and turning angle to the B-Series.
B-Series | I-Series | |
---|---|---|
Ride Quality | Good | Best |
Roll Stability | Good | Best |
Side to Side Stability | Good | Best |
Weight Capacity (GVWR) | Best | Best |
Turning Angle | Best | Best |
Coach Packaging | Best | Good |