For resonance-free operation. Material combination of steel and highly shock-resistant glass-fibre reinforced plastic. Highly robust and short design with high torsional stiffness for fail-safe transmission of small to medium operation ranges. Enables optimum design adaptation to existing space requirements. Extremely durable and economical. Oil-resistant and suitable for high ambient temperatures. Blind assembly for minimum mounting effort. Delivered with pre-assembled hubstar and flywheel connections acc. to SAE. Also available with CENTALOC clamping hub and for non-standard flywheels.