
NM67 Flexible Jaw Coupling
NM67 NM flexible coupling with 8-28 mm bore range, 10000 rpm reference maximum speed and 2.2 kgf·m reference normal torque.
View details →NM50 NM flexible coupling with 7-19 mm bore range, 12500 rpm reference maximum speed and 1.3 kgf·m reference normal torque.

НМ50 is an NM flexible coupling size for industrial shaft connections. Its size data gives a first check for bore capacity, operating speed and torque. The finished hubs are machined to the actual shafts, so the driver and driven bores may be different.
| Parameter | Value | Buyer note |
|---|---|---|
| Bore range | 7-19 mm | Confirm both finished bores independently. |
| Reference max speed | 12500 rpm | Compare with the actual operating speed. |
| Reference normal torque | 1.3 kgf·m | Use with the real machine duty, not as the only selection input. |
The coupling size does not define the finished bore. State the diameter, keyway and fit for Shaft 1 and Shaft 2 separately. If axial space is restricted, include the available hub envelope or an assembly drawing.
| Элемент | Что подтвердить |
|---|---|
| Водитель | Motor, engine or other driver; include power and operating speed. |
| Ведомое оборудование | Насос, компрессор, редуктор, вентилятор, миксер, конвейер или другая машина. |
| Duty pattern | Continuous/cyclic service, starts, reversals and shock loading where present. |
| Environment | Unusual heat, contamination, oil/chemical exposure or outdoor conditions. |
| Replacement work | Existing marking, photos and measurable hub dimensions. |
NM couplings are commonly used on pumps, compressors, motor-to-gearbox drives, fans, blowers, mixers, conveyors and general industrial machinery. Application suitability depends on the complete duty and shaft interfaces.
Send both shaft dimensions, operating speed, driven equipment and quantity. Include the existing coupling marking or drawing for replacement work.