D 88/2, Vibration Dampers

Machinery Components

Vibration Dampers

D 88/2

Product Description

The damper consists of a primary and a secondary section. Between these, groups of leaf spring packs are arranged, clamped at their outer ends. These spring packs - together with the primary and secondary sections - form chambers, which are filled with oil. If the exterior section vibrates in relation to the inner one, the leaf springs are bent and force the pressurized engine oil from one chamber into another, retarding the relative movement of the two parts and thus damping the torsional vibration. The elasticity is determined by careful choice of leaf springs and the damping factor by the gaps, which interconnects the oil chambers.

Product Ratings

Outer/Inner Member Mass Moment of Inertia: 92.3 kgm/11.5 kgm | Perm. Elastic Torque: 82.1 kNm | Transient Perm. Elastic Torque: 123 kNm | Perm. Damping Torque per bar: 9.73 kNm/bar | Perm. Power Loss: 25 kW | Torsional Stiffness: 4.2 MNm/rad | Linear Viscous Damping: 7300 Nms/rad | Hub Bore: 225/229 mm (1:50 taper) | Push-up distance: 14.8 mm | Bolted PTO (15 kNm) connection: 20xNon-Fitted Bolts Size: M30x2 - 8.8 (MA=1010 Nm/Tightening torque) at 380 mm bolt cycle diameter.

Applicable Standards

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