ArvinMeritor's Commercial Vehicle Systems business and its clutch technology partner, ZF Sachs AG, have announced a new, self-adjusting twin-plate clutch designed to reduce the downtime and expense associated with manual clutch adjustments. The Twin XTend 15.5" self-adjusting clutch for Class 8 vehicles continually maintains proper adjustments throughout the lifetime of the clutch.
The Twin XTend clutch will be manufactured by ZF Sachs, with production scheduled to begin during fourth-quarter 2004. ArvinMeritor will provide sales and service support through its DriveTrain Plus organization.
Besides eliminating the need for manual clutch adjustments, the Twin XTend clutch offers:
Controlled center plate release feature. The cover assembly incorporates this patented feature, designed to prevent clutch drag and provide superior engagement.
Wear indicator. This provides a simple means of gauging remaining clutch life.
Long-travel, soft-damper disc assemblies. This design prevents damaging torsional vibrations to harm the drivetrain by tuning the drivetrain's natural frequency outside of the vehicle operating range. Pre-damper versions of the disc assembly are also available for drivetrains susceptible to transmission neutral idle gear rattle.
Extended-lube and long-life release bearing options. These options can further extend clutch life and reduce maintenance requirements.
Diaphragm spring architecture. This provides low pedal effort, which increases driver comfort.
The Twin XTend will be available in torque ratings from 1,150 to 2,050 ft-lb.