Goodrich Rome

104 Otis Street
Rome, NY 13441-4714
Phone: 315-838-1200
Fax: 315-838-1477

Commercial Couplings Ratings, Life Cycle Costs and Materials

Coupling Ratings

Goodrich Diaphragm Couplings have been rerated. Using the tables on page 3 and 5 for Maximum Continuous Torque and 125% misalignments (axial and angular) will yield a factor of safety of at least 1.25. Figure 2 shows a modified goodman diagram for stainless steel (Custom 455). The combined mean stress (steady state torque/axial & speed) and combined alternating stress (bending & cyclic torque/axial) must have the plotted operating point fall within the area under the dotted line. Any point within this area has a minimum factor of safety of 1.25 using the proportional increase method.

Life Cycle Cost

Goodrich has lowest total system cost. Thanks to Goodrich' experience and technology, our Diaphragm Coupling is the most reliable coupling on the market. Because of Goodrich' infinite life design no spare parts (other than hardware) are required. Therefore the total system cost of the Goodrich coupling is significantly less than competing designs where downtime to replace a flex element pack will result in added inventory and labor as well as interruption of production revenue.