Rexnord 7300090 ES5-R Omega Element Coupling Spacer

7300090 ES5-R Omega Element Coupling Spacer from Rexnord is a spacer element in the Omega ES-R elastomeric coupling family, designed to bridge shaft spacing between hubs in ES-R sized assemblies. This spacer style uses standard imperial dimensions and carries Rexnord’s orange urethane shoe coating, consistent with Omega Element couplings' damping performance and misalignment tolerance. Intended for ES-R size Omega Element couplings, the ES5-R spacer provides a defined C-dimension spacing that can be configured across common hub types to achieve the required shaft separation. Catalog data for ES5-R spacers lists maximum spacings in the range of 5.38 inches, 7.38 inches, and 9.38 inches depending on the hub configuration, enabling precise adaptation to equipment layouts while preserving the elastomeric element’s load paths. The 7300090 designation identifies this part as the ES5-R spacer element, pairing with Rexnord Omega elements and compatible hubs to form a complete elastomeric connection that dampens vibration and accommodates small misalignments. Where hardware variants exist, Rexnord also offers ES5-R spacers with stainless steel capscrews or metric hardware, but the 7300090 ES5-R spacer is the standard imperial version in the ES-R lineup.