Power Transmission Couplings

H-C Coupling Solutions for Turbomachinery

by John Crane

View John Crane on TEKEN44

High-performance, Reduced-moment and Low-windage Design (API 671 and ISO 10441) H-C couplings offer the lowest possible overhung moments and additional shrouding of the flexible elements and bolts. This arrangement produces a high-integrity coupling suited for most medium-speed and high-speed compressor drives. The factory assembled H-C hub/flex units are designed to accommodate typical machine shaft sizes for turbo compressor applications. The separate spacer on the H-C can be varied to provide the appropriate distance between shaft ends and the required torsional stiffness to suit individual applications. On some applications, the H-C hub assembly on a compressor or gearbox input shaft is combined with the flanged H-F arrangement for a turbine driver.