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Mack Trucks provides Twin Y, mRIDE

Mack Trucks has launched its Mack Twin Y air suspension, which uses an Y-shaped high-strength steel design.

Offered with proprietary Mack axles, the Twin Y delivers comfort, handling, and fuel efficiency for those desiring a smoother, more stable ride. The Twin Y is up to 400 pounds lighter than other air suspensions.

Mack also is offering proprietary axles on its Mack mRIDE spring suspension, ideal for vocational customers demanding a durable, stable ride with greater articulation.

Customer field-tested for more than three million miles and available on the Mack Pinnacle axle back and axle forward models, the Twin Y features Mack S38 and S40 series axles with C125/126 and C150/151 carriers.

Design of the Twin Y air suspension includes two stamped high-strength steel Y-shaped blades per wheel end. Twin Y blades are joined to the axle with both upper and lower axle seats, which reduces suspension windup and improves tire traction and braking control.

Axle seats are clamped to the axle housing by Huck U-bolts on both sides and never need to be retorqued.

Bushings in the upper and lower axle seats offer greater roll control and deliver easier handling and a more comfortable ride. Lighter weight and non-torque reactive, the Twin Y requires less maintenance and extends tire and component life.

The Twin Y’s design means the load on the suspension is entirely on the air ride and not on the pivot bushing.

The mRIDE spring suspension, paired with Mack C150/151 series axle carriers, delivers superior performance for vocational applications and is available on the Granite, Titan by Mack, Pinnacle axle forward, and TerraPro model trucks.

Use of spring leafs over four separate rubber block packs offer stability and articulation, while also allowing needed clearance for larger tires and brake components required in construction and vocational applications.

The mRIDE delivers a smoother ride, improved stability, and greater ground clearance over difficult terrain. It provides constant ground contact for all wheels over its articulation range, which in turn maximizes traction at any job site.

Parallel pinion angles of the Mack axles extend the driveline joint life. Coupled with the greaseless mRIDE suspension, the offering simplifies maintenance and is easier to align.

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