Guardian has introduced the DELTA Series flexible coupling line for use on diesel-driven hydrostatic machinery and construction equipment. The cost effective DELTA single-piece design incorporates a splined and hardened steel hub that is pre-assembled into the glass-fiber reinforced flange. The DELTA coupling attaches to the engine flywheel, taking advantage of elastomeric grommets that provide a steady dampening effect to normal engine vibrations. Although the coupling incorporates rubber bushings for dampening, it is relatively stiff which allows equipment with low inertia to operate below the critical speed range.

This coupling is suited for accurately aligned drives that minimize misalignments. The DELTA Series is able to accommodate small angular, parallel, and axial misalignments that are typical to piloted flange connections. The DELTA Series couplings can achieve torque capacities of up to 6,130 IN-LBS nominally. These high performance couplings are designed for demanding applications on the latest tier engines.