U.S. projects may use inch shafts and keyways even when the NM model name is metric. State the units beside every shaft and key dimension so the finished hubs are quoted from the actual interface rather than from a motor frame assumption.<\/p>\n
| Item<\/th>\n | What to confirm<\/th>\n<\/tr>\n<\/thead>\n |
|---|---|
| Units<\/td>\n | State inch or mm explicitly for every shaft and key dimension.<\/td>\n<\/tr>\n |
| Existing part<\/td>\n | NM marking, photos and hub dimensions for replacement work.<\/td>\n<\/tr>\n |
| Duty<\/td>\n | Operating rpm, motor power or torque and driven equipment.<\/td>\n<\/tr>\n |
| Fit<\/td>\n | Any customer-specified shaft fit or key standard.<\/td>\n<\/tr>\n |
| Order<\/td>\n | Quantity, mixed models and documentation requirements.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\nTypical project use<\/h2>\nNM couplings are commonly considered for pump, compressor, motor-to-gearbox, fan, mixer, conveyor and general industrial drives. The final coupling size and machining details should match the actual shaft interfaces and operating duty for the machine.<\/p>\n \n Request an NM Coupling Quote<\/h2>\nSend the NM size if known, both shaft diameters, operating speed, driven equipment and quantity. Add a drawing or photos for replacement work.<\/p>\n |