Pump-drive enquiries are a natural fit for NM couplings, but \u201cfor a water pump\u201d is still too little information to select a size. A useful quotation starts with motor speed, motor and pump shaft diameters, power or torque, pump type and the expected operating pattern.<\/p>\n
Replacement projects often begin with a photo of two red or dark hubs and a black element. That can identify the coupling family, but it cannot prove the bore, hub length or duty. Measure the shafts and capture the existing model marking before selecting a replacement.<\/p>\n
| \u063a\u0631\u0636<\/th>\n | \u0645\u0627 \u0627\u0644\u0630\u064a \u064a\u062c\u0628 \u062a\u0623\u0643\u064a\u062f\u0647\u061f<\/th>\n<\/tr>\n<\/thead>\n |
|---|---|
| Motor<\/td>\n | Power, speed and shaft diameter\/key.<\/td>\n<\/tr>\n |
| Pump<\/td>\n | Type, shaft diameter\/key and whether the duty is continuous or cyclic.<\/td>\n<\/tr>\n |
| Installed coupling<\/td>\n | NM marking, outside dimensions and condition if this is a replacement.<\/td>\n<\/tr>\n |
| \u062e\u062f\u0645\u0629<\/td>\n | Start frequency, known vibration or repeated element damage.<\/td>\n<\/tr>\n |
| Commercial<\/td>\n | Quantity and spare-element requirement.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n |