This Rotex 55 spider coupling (Part # 0512000116) is a elastomeric insert designed for KTR Rotex Size 55 jaw couplings . Made from high-strength T-PUR material with 92 Shore A hardness, this orange spider sits between the coupling hubs to transmit torque, dampen vibrations, and compensate for minor shaft misalignments . It is ideal for use with vacuum pumps driven by electric motors where reliable, low-maintenance power transmission is required.
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